; Spelling fixes

41 files changed, 91 insertions, 93 deletions

diff --git a/ChangeLog.2 b/ChangeLog.2
index 453889de295..c713d8a5a81 100644
--- a/ChangeLog.2
+++ b/ChangeLog.2
@@ -15300,7 +15300,7 @@
 
 	* lisp/progmodes/cc-langs.el (c++-template-syntax-table)
 	(c-no-parens-syntax-table): Add extra "(eval ..)"s around "'(lambda ..)"
-	forms to remove the superflous quotes.
+	forms to remove the superfluous quotes.
 
 2015-11-24  Eli Zaretskii  <eliz@gnu.org>
 
diff --git a/ChangeLog.3 b/ChangeLog.3
index 43c7e23f485..27df42cec4d 100644
--- a/ChangeLog.3
+++ b/ChangeLog.3
@@ -16432,7 +16432,7 @@
 	Loading flymake-elisp.el doesn't setup flymake-mode to turn on
 	automatically, but it affects emacs-lisp-mode-hook so that
 	flymake-diagnostic-functions is setup with a suitable buffer-local
-	value.  The variable flymake-diagnostic-funtions in every live
+	value.  The variable flymake-diagnostic-functions in every live
 	emacs-lisp-mode buffer is also adjusted.
 
 	* lisp/progmodes/flymake.el (top): Require flymake-elisp.
@@ -66449,8 +66449,8 @@
 	(verilog-modi-cache-results, verilog-save-buffer-state)
 	(verilog-save-font-no-change-functions): When internally suppressing change
 	functions, use `inhibit-modification-hooks' and call
-	`after-change-funtions' to more nicely work with user hooks.  Reported by
-	Stefan Monnier.
+	`after-change-functions' to more nicely work with user hooks.
+	Reported by Stefan Monnier.
 
 	(verilog-auto, verilog-delete-auto, verilog-delete-auto-buffer):
 	Create `verilog-delete-auto-buffer' to avoid double-calling
diff --git a/admin/nt/dist-build/build-dep-zips.py b/admin/nt/dist-build/build-dep-zips.py
index 5698f5179c8..b538d851513 100755
--- a/admin/nt/dist-build/build-dep-zips.py
+++ b/admin/nt/dist-build/build-dep-zips.py
@@ -78,7 +78,7 @@ def immediate_deps(pkg):
     ## Split into dependencies
     dependencies = dependencies.strip().split(" ")
 
-    ## Remove > signs TODO can we get any other punctation here?
+    ## Remove > signs TODO can we get any other punctuation here?
     dependencies = [d.split(">")[0] for d in dependencies if d]
     dependencies = [d for d in dependencies if not d == "None"]
 
diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 7f77d11d928..06032729a50 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -5917,7 +5917,7 @@ Draw vertical lines.
 @deffn Command curveto coordinate-sets
 Using the first element in @var{coordinate-sets}, draw a cubic Bézier
 curve from the current point.  If there are multiple coordinate sets,
-draw a polybézier.  Each coordinate set is a list of the form
+draw a polybezier.  Each coordinate set is a list of the form
 @code{(@var{x1} @var{y1} @var{x2} @var{y2} @var{x} @var{y})}, where
 @w{(@var{x}, @var{y})} is the curve’s end point.  @w{(@var{x1},
 @var{y1})} and @w{(@var{x2}, @var{y2})} are control points at the
@@ -5934,7 +5934,7 @@ beginning and at the end, respectively.
 @deffn Command smooth-curveto coordinate-sets
 Using the first element in @var{coordinate-sets}, draw a cubic Bézier
 curve from the current point.  If there are multiple coordinate sets,
-draw a polybézier.  Each coordinate set is a list of the form
+draw a polybezier.  Each coordinate set is a list of the form
 @code{(@var{x2} @var{y2} @var{x} @var{y})}, where @w{(@var{x},
 @var{y})} is the curve’s end point and @w{(@var{x2}, @var{y2})} is the
 corresponding control point.  The first control point is the
@@ -5954,7 +5954,7 @@ coincides with the current point.
 @deffn Command quadratic-bezier-curveto coordinate-sets
 Using the first element in @var{coordinate-sets}, draw a quadratic
 Bézier curve from the current point.  If there are multiple coordinate
-sets, draw a polybézier.  Each coordinate set is a list of the form
+sets, draw a polybezier.  Each coordinate set is a list of the form
 @code{(@var{x1} @var{y1} @var{x} @var{y})}, where @w{(@var{x},
 @var{y})} is the curve’s end point and @w{(@var{x1}, @var{y1})} is the
 control point.
@@ -5972,7 +5972,7 @@ control point.
 @deffn Command smooth-quadratic-bezier-curveto coordinate-sets
 Using the first element in @var{coordinate-sets}, draw a quadratic
 Bézier curve from the current point.  If there are multiple coordinate
-sets, draw a polybézier.  Each coordinate set is a list of the form
+sets, draw a polybezier.  Each coordinate set is a list of the form
 @code{(@var{x} @var{y})}, where @w{(@var{x}, @var{y})} is the curve’s
 end point.  The control point is the reflection of the control point
 of the previous command relative to the current point, if that command
diff --git a/doc/lispref/searching.texi b/doc/lispref/searching.texi
index 5bf3c5b067f..bf18f80f63f 100644
--- a/doc/lispref/searching.texi
+++ b/doc/lispref/searching.texi
@@ -1551,7 +1551,7 @@ notation, @pxref{Extending Rx}.
 @subsubsection Defining new @code{rx} forms
 
 The @code{rx} notation can be extended by defining new symbols and
-parametrised forms in terms of other @code{rx} expressions.  This is
+parameterized forms in terms of other @code{rx} expressions.  This is
 handy for sharing parts between several regexps, and for making
 complex ones easier to build and understand by putting them together
 from smaller pieces.
@@ -1608,7 +1608,7 @@ defined as a plain symbol to be replaced with @var{rx-form}.  Example:
 @end example
 
 If @var{arglist} is present, it must be a list of zero or more
-argument names, and @var{name} is then defined as a parametrised form.
+argument names, and @var{name} is then defined as a parameterized form.
 When used in an @code{rx} expression as @code{(@var{name} @var{arg}@dots{})},
 each @var{arg} will replace the corresponding argument name inside
 @var{rx-form}.
diff --git a/doc/lispref/windows.texi b/doc/lispref/windows.texi
index fdba259bf71..9ddd69ab7e7 100644
--- a/doc/lispref/windows.texi
+++ b/doc/lispref/windows.texi
@@ -2874,7 +2874,7 @@ Ordering}).
 A major client of this is @code{display-buffer-reuse-window}, but all
 other action functions that try to reuse a window are affected as
 well.  @code{display-buffer-in-previous-window} consults it when
-searching for a window that previosuly displayed the buffer on another
+searching for a window that previously displayed the buffer on another
 frame.
 
 @vindex inhibit-switch-frame@r{, a buffer display action alist entry}
diff --git a/doc/misc/dired-x.texi b/doc/misc/dired-x.texi
index f6f1a3ce485..2973dcc5b25 100644
--- a/doc/misc/dired-x.texi
+++ b/doc/misc/dired-x.texi
@@ -376,7 +376,7 @@ case-insensitive.
 @defvar dired-omit-localp
 This variable determines the @var{localp} argument
 @code{dired-omit-expunge} passes to @code{dired-get-filename}.  If it
-is @code{no-dir}, teh default, omitting is much faster, but you can
+is @code{no-dir}, the default, omitting is much faster, but you can
 only match against the non-directory part of the file name.  Set it to
 @code{nil} if you need to match the whole file name or @code{t} to
 match the file name relative to the buffer's top-level directory.
diff --git a/doc/misc/org.texi b/doc/misc/org.texi
index 7866fcfd5f6..4d4ca40061d 100644
--- a/doc/misc/org.texi
+++ b/doc/misc/org.texi
@@ -8641,7 +8641,7 @@ image @samp{1.jpg}, since the link is inside a sub-heading to @samp{Chapter
 
 Inheritance works the same way for both @samp{ID} and @samp{DIR} property.  If
 both properties are defined on the same headline then @samp{DIR} takes
-precedance.  This is also true if inheritance is enabled.  If @samp{DIR}
+precedence.  This is also true if inheritance is enabled.  If @samp{DIR}
 is inherited from a parent node in the outline, that property still
 takes precedence over an @samp{ID} property defined on the node itself.
 
@@ -21389,7 +21389,7 @@ Before updating a dynamic block, Org removes content between the
 previous content of the dynamic block becomes erased from the buffer
 and appended to the plist under @code{:content}.
 
-The syntax for naming a writer function with a dynamic block labelled
+The syntax for naming a writer function with a dynamic block labeled
 @samp{myblock} is: @code{org-dblock-write:myblock}.
 
 The following is an example of a dynamic block and a block writer function
diff --git a/etc/NEWS b/etc/NEWS
index 69b51b7f44e..7602a2e56a1 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -722,7 +722,7 @@ You can use this new user option to control indentation of arguments of
 
 ** byte compiler
 *** 'byte-compile-dynamic' is now obsolete.
-This is because on the one hand it suffers from various misbehaviors in corner
+This is because on the one hand it suffers from misbehavior in corner
 cases that have plagued it for years, and on the other experiments indicated
 that it doesn't bring any measurable benefit.
 
@@ -1237,7 +1237,7 @@ early init file.
 A new function has been added which allows users to filter the
 packages list by name: 'package-menu-filter-by-name'.  By default, it
 is bound to '/ n'.  Additionally, the function
-'package-menu-fiter-by-keyword' has been renamed from
+'package-menu-filter-by-keyword' has been renamed from
 'package-menu-filter'.  Its keybinding has also been changed to '/ k'
 (from 'f').  To clear any of the two filters, the user can now call
 the 'package-menu-clear-filter' function, bound to '/ /' by default.
diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index 4ce8e9b1c2c..6f7227b41cd 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -311,7 +311,7 @@ matches the same structures than 'latex but it calls
 org-src-font-lock-fontify-block instead, thus bringing about full
 LaTeX font locking.
 
-*** ~org-clone-subtree-with-time-shift~ learnt to shift backward in time
+*** ~org-clone-subtree-with-time-shift~ learned to shift backward in time
 
 =<C-c C-x c>= (~org-clone-subtree-with-time-shift~) now takes a
 negative value as a valid repeater to shift time stamps in backward
diff --git a/lisp/ChangeLog.7 b/lisp/ChangeLog.7
index 2fe98e8f00d..2c2aabd94b5 100644
--- a/lisp/ChangeLog.7
+++ b/lisp/ChangeLog.7
@@ -17104,8 +17104,8 @@
 	the rewrite of `hs-inside-comment-p'.
 	(hs-inside-comment-p): Rewritten from scratch.  Semantics changed
 	when returning non-nil.  We can be inside a comment, but that
-	comment might not be hidable (the car of the return value should
-	be non-nil to be hidable).
+	comment might not be hideable (the car of the return value should
+	be non-nil to be hideable).
 	(hs-grok-mode-type): Rewrite to be more understandable.
 	`hs-c-end-regexp' does not exist any more.
 	Initialize `hs-c-start-regexp' from the alist if specified there.
@@ -17117,7 +17117,7 @@
 	block, go to their end and look there for the overlays.
 	(java-hs-adjust-block-beginning): New function.
 	(hs-hide-all): Hide a comment block only if `hs-inside-comment-p'
-	says is hidable.
+	says is hideable.
 	(hs-hide-block): Simplify.  Handle properly the result of
 	`hs-inside-comment-p'.
 	(hs-show-block): Likewise.
diff --git a/lisp/auth-source-pass.el b/lisp/auth-source-pass.el
index 45d5a6ce81b..7201a2d1a2c 100644
--- a/lisp/auth-source-pass.el
+++ b/lisp/auth-source-pass.el
@@ -292,7 +292,7 @@ components, from longest to shortest."
 (defun auth-source-pass--name-port-user-suffixes (name user port)
   "Return a list of possible path suffixes for NAME, USER, & PORT.
 
-The resulting list is ordered from most specifc to least
+The resulting list is ordered from most specific to least
 specific, with paths matching all of NAME, USER, & PORT first,
 then NAME & USER, then NAME & PORT, then just NAME."
   (seq-mapcat
diff --git a/lisp/button.el b/lisp/button.el
index ac6af0be4f8..d5aaf1b42ee 100644
--- a/lisp/button.el
+++ b/lisp/button.el
@@ -243,7 +243,7 @@ overlay, a buffer position, or (for buttons in the mode-line or
 header-line) a string.
 
 If BUTTON has a `button-data' value, call the function with this
-value instad of BUTTON.
+value instead of BUTTON.
 
 This function only works when BUTTON is in the current buffer."
   (let ((action (or (and use-mouse-action (button-get button 'mouse-action))
diff --git a/lisp/cedet/ChangeLog.1 b/lisp/cedet/ChangeLog.1
index 1d34219daa0..cf8d6c4f6c6 100644
--- a/lisp/cedet/ChangeLog.1
+++ b/lisp/cedet/ChangeLog.1
@@ -453,7 +453,7 @@
 
 	* semantic/ctxt.el (semantic-get-local-variables-default):
 	Also try to parse local variables for buffers which are currently
-	marked as unparseable.  Otherwise, it is often impossible to
+	marked as unparsable.  Otherwise, it is often impossible to
 	complete local variables.
 
 	* semantic/scope.el (semantic-analyze-scoped-types-default): If we
diff --git a/lisp/gnus/gnus-cus.el b/lisp/gnus/gnus-cus.el
index 5291d1d64d1..57e7f7c8c35 100644
--- a/lisp/gnus/gnus-cus.el
+++ b/lisp/gnus/gnus-cus.el
@@ -257,7 +257,7 @@ Server-assigned value attached to IMAP groups, used to maintain consistency.")
     (modseq (choice :tag "modseq"
 		    (const :tag "None" nil)
 		    (string :tag "Sequence number"))
-	    "Modification seqence number")
+	    "Modification sequence number")
     (active (cons :tag "active" (integer :tag "min") (integer :tag "max"))
 	    "active")
     (permanent-flags (repeat :tag "Permanent Flags" (symbol :tag "Flag"))
diff --git a/lisp/gnus/nnimap.el b/lisp/gnus/nnimap.el
index bbbca8f4193..f02c2e5c1f1 100644
--- a/lisp/gnus/nnimap.el
+++ b/lisp/gnus/nnimap.el
@@ -233,7 +233,7 @@ textual parts.")
     'headers))
 
 (defun nnimap-transform-headers ()
-  "Transform server's FETCH response into parseable headers."
+  "Transform server's FETCH response into parsable headers."
   (goto-char (point-min))
   (let (seen-articles article lines size string labels)
     (cl-block nil
diff --git a/lisp/icomplete.el b/lisp/icomplete.el
index 16167ea21e1..cd20064be02 100644
--- a/lisp/icomplete.el
+++ b/lisp/icomplete.el
@@ -69,7 +69,7 @@ When nil, show candidates in full."
   :version "24.4")
 
 (defvar icomplete-tidy-shadowed-file-names nil
-  "If non-nil, automatically delete superflous parts of file names.
+  "If non-nil, automatically delete superfluous parts of file names.
 For example, if the user types ~/ after a long path name,
 everything preceding the ~/ is discarded so the interactive
 selection process starts again from the user's $HOME.")
diff --git a/lisp/net/newst-backend.el b/lisp/net/newst-backend.el
index 9c24dec2a1e..792ddbbf0b7 100644
--- a/lisp/net/newst-backend.el
+++ b/lisp/net/newst-backend.el
@@ -1598,7 +1598,7 @@ This function calls `message' with arguments STRING and ARGS, if
 (defun newsticker--decode-iso8601-date (string)
   "Return ISO8601-STRING in format like `encode-time'.
 Converts from ISO-8601 to Emacs representation.  If no time zone
-is present, this fuction defaults to universal time."
+is present, this function defaults to universal time."
   (if string
       (condition-case nil
           (encode-time (decoded-time-set-defaults (iso8601-parse string) 0))
diff --git a/lisp/org/org-attach.el b/lisp/org/org-attach.el
index bc49be7fe74..d3e1c78b7da 100644
--- a/lisp/org/org-attach.el
+++ b/lisp/org/org-attach.el
@@ -187,7 +187,7 @@ attachment folders based on ID."
   "Hook that is invoked by `org-attach-open'.
 
 Created mostly to be compatible with org-attach-git after removing
-git-funtionality from this file.")
+git-functionality from this file.")
 
 (defcustom org-attach-commands
   '(((?a ?\C-a) org-attach-attach
@@ -231,7 +231,7 @@ directory in dired and delete from there.\n")
 Each entry in this list is a list of three elements:
 - A list of keys (characters) to select the command (the fist
   character in the list is shown in the attachment dispatcher's
-  splash buffer and minubuffer prompt).
+  splash buffer and minibuffer prompt).
 - A command that is called interactively when one of these keys
   is pressed.
 - A docstring for this command in the attachment dispatcher's
diff --git a/lisp/org/org.el b/lisp/org/org.el
index 11bc3641022..c289d5425ec 100644
--- a/lisp/org/org.el
+++ b/lisp/org/org.el
@@ -9854,9 +9854,9 @@ Elements of length one have a tab appended.  Elements of length
 two are kept as is.  Longer elements are truncated to length two.
 
 If an element cannot be made unique, an error is raised."
-  (let ((orderd-keys (cl-sort (copy-sequence keys) #'< :key #'length))
+  (let ((ordered-keys (cl-sort (copy-sequence keys) #'< :key #'length))
 	menu-keys)
-    (dolist (key orderd-keys)
+    (dolist (key ordered-keys)
       (let ((potential-key
 	     (cl-case (length key)
 	       (1 (concat key "\t"))
diff --git a/lisp/progmodes/cc-langs.el b/lisp/progmodes/cc-langs.el
index 44d0d49df5b..da3fc6b318e 100644
--- a/lisp/progmodes/cc-langs.el
+++ b/lisp/progmodes/cc-langs.el
@@ -1416,7 +1416,7 @@ template opener followed by the \"::\" operator - usually."
 	       (c-lang-const c-<-pseudo-digraph-cont-regexp))
 
 (c-lang-defconst c-<-pseudo-digraph-cont-len
-  "The maximum length of the main bit of a `c-<pseudp-digraph-cont-regexp' match.
+  "The maximum length of the main bit of a `c-<-pseudo-digraph-cont-regexp' match.
 This doesn't count the merely contextual bits of the regexp match."
   t 0
   c++ 2)
diff --git a/lisp/progmodes/flymake.el b/lisp/progmodes/flymake.el
index f052e002df7..d980d675d4d 100644
--- a/lisp/progmodes/flymake.el
+++ b/lisp/progmodes/flymake.el
@@ -708,7 +708,7 @@ backend is operating normally.")
   "Tell if Flymake has running backends in this buffer."
   (flymake-running-backends))
 
-;; FIXME: clone of `isearch-intesects-p'! Make this an util.
+;; FIXME: clone of `isearch-intersects-p'! Make this an util.
 (defun flymake--intersects-p (start0 end0 start1 end1)
   "Return t if regions START0..END0 and START1..END1 intersect."
   (or (and (>= start0 start1) (<  start0 end1))
diff --git a/lisp/progmodes/hideshow.el b/lisp/progmodes/hideshow.el
index 53235ea573b..8f8b79af74b 100644
--- a/lisp/progmodes/hideshow.el
+++ b/lisp/progmodes/hideshow.el
@@ -610,7 +610,7 @@ as cdr."
         (forward-comment (- (buffer-size)))
         (skip-chars-forward " \t\n\f")
         (let ((p (point))
-              (hidable t))
+              (hideable t))
           (beginning-of-line)
           (unless (looking-at (concat "[ \t]*" hs-c-start-regexp))
             ;; we are in this situation: (example)
@@ -636,13 +636,13 @@ as cdr."
             (when (or (not (looking-at hs-c-start-regexp))
                       (> (point) q))
               ;; we cannot hide this comment block
-              (setq hidable nil)))
+              (setq hideable nil)))
           ;; goto the end of the comment
           (forward-comment (buffer-size))
           (skip-chars-backward " \t\n\f")
           (end-of-line)
           (when (>= (point) q)
-            (list (and hidable p) (point))))))))
+            (list (and hideable p) (point))))))))
 
 (defun hs-grok-mode-type ()
   "Set up hideshow variables for new buffers.
@@ -741,7 +741,7 @@ and `case-fold-search' are both t."
   (save-excursion
     (let ((c-reg (hs-inside-comment-p)))
       (if (and c-reg (nth 0 c-reg))
-          ;; point is inside a comment, and that comment is hidable
+          ;; point is inside a comment, and that comment is hideable
           (goto-char (nth 0 c-reg))
         (end-of-line)
         (when (and (not c-reg)
diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index 0eed7acd0d7..b0d3174eabc 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -3856,8 +3856,8 @@ Returns the tracked buffer."
 
 (defun python-pdbtrack-comint-input-filter-function (input)
   "Finish tracking session depending on command in INPUT.
-Commands that must finish tracking session is listed in
-`python-pdbtrack-untracking-commands'."
+Commands that must finish the tracking session are listed in
+`python-pdbtrack-exit-command'."
   (when (and python-pdbtrack-tracked-buffer
              ;; Empty input is sent by C-d or `comint-send-eof'
              (or (string-empty-p input)
diff --git a/lisp/so-long.el b/lisp/so-long.el
index 3df2de97297..160a945f657 100644
--- a/lisp/so-long.el
+++ b/lisp/so-long.el
@@ -69,7 +69,7 @@
 ;; the long lines.  In such circumstances you may find that `longlines-mode' is
 ;; the most helpful facility.
 ;;
-;; Note also that the mitigations are automatically triggered when visiting a
+;; Note also that the mitigation is automatically triggered when visiting a
 ;; file.  The library does not automatically detect if long lines are inserted
 ;; into an existing buffer (although the `so-long' command can be invoked
 ;; manually in such situations).
@@ -386,7 +386,7 @@
 ;;       - Added sgml-mode and nxml-mode to `so-long-target-modes'.
 ;; 0.7.4 - Refactored the handling of `whitespace-mode'.
 ;; 0.7.3 - Added customize group `so-long' with user options.
-;;       - Added `so-long-original-values' to generalise the storage and
+;;       - Added `so-long-original-values' to generalize the storage and
 ;;         restoration of values from the original mode upon `so-long-revert'.
 ;;       - Added `so-long-revert-hook'.
 ;; 0.7.2 - Remember the original major mode even with M-x `so-long-mode'.
@@ -421,7 +421,7 @@
 Has no effect if `global-so-long-mode' is not enabled.")
 
 (defvar-local so-long--active nil ; internal use
-  "Non-nil when `so-long' mitigations are in effect.")
+  "Non-nil when `so-long' mitigation is in effect.")
 
 (defvar so-long--set-auto-mode nil ; internal use
   "Non-nil while `set-auto-mode' is executing.")
@@ -740,7 +740,7 @@ was established."
     )
   ;; It's not clear to me whether all of these would be problematic, but they
   ;; seemed like reasonable targets.  Some are certainly excessive in smaller
-  ;; buffers of minified code, but we should be aiming to maximise performance
+  ;; buffers of minified code, but we should be aiming to maximize performance
   ;; by default, so that Emacs is as responsive as we can manage in even very
   ;; large buffers of minified code.
   "List of buffer-local minor modes to explicitly disable.
@@ -781,7 +781,7 @@ If `so-long-revert' is subsequently invoked, then the variables are restored
 to their original states.
 
 The combination of `line-move-visual' (enabled) and `truncate-lines' (disabled)
-is important for maximising responsiveness when moving vertically within an
+is important for maximizing responsiveness when moving vertically within an
 extremely long line, as otherwise the full length of the line may need to be
 scanned to find the next position."
   :type '(alist :key-type (variable :tag "Variable")
@@ -822,12 +822,12 @@ If nil, no mode line indicator will be displayed."
 
 (defface so-long-mode-line-active
   '((t :inherit mode-line-emphasis))
-  "Face for `so-long-mode-line-info' when mitigations are active."
+  "Face for `so-long-mode-line-info' when mitigation is active."
   :package-version '(so-long . "1.0"))
 
 (defface so-long-mode-line-inactive
   '((t :inherit mode-line-inactive))
-  "Face for `so-long-mode-line-info' when mitigations have been reverted."
+  "Face for `so-long-mode-line-info' when mitigation has been reverted."
   :package-version '(so-long . "1.0"))
 
 ;; Modes that go slowly and line lengths excessive
@@ -983,7 +983,7 @@ Displayed as part of `mode-line-misc-info'.
 
 `so-long-mode-line-label' defines the text to be displayed (if any).
 
-Face `so-long-mode-line-active' is used while mitigations are active, and
+Face `so-long-mode-line-active' is used while mitigation is active, and
 `so-long-mode-line-inactive' is used if `so-long-revert' is called.
 
 Not displayed when `so-long-mode' is enabled, as the major mode construct
@@ -1659,7 +1659,7 @@ Equivalent to calling (global-so-long-mode 0)"
 
 ;;;###autoload
 (define-minor-mode global-so-long-mode
-  "Toggle automated performance mitigations for files with long lines.
+  "Toggle automated performance mitigation for files with long lines.
 
 Many Emacs modes struggle with buffers which contain excessively long lines,
 and may consequently cause unacceptable performance issues.
@@ -1861,11 +1861,11 @@ If it appears in `%s', you should remove it."
 ; LocalWords:  initialized profiler boolean minified pre redisplay config keymap
 ; LocalWords:  noerror selectable mapc sgml nxml hl flydiff defs arg Phil Sainty
 ; LocalWords:  defadvice nadvice whitespace ie bos eos eobp origmode un Un setq
-; LocalWords:  docstring auf wiedersehen longlines alist autoload Refactored Inc
-; LocalWords:  MERCHANTABILITY RET REGEXP VAR ELPA WS mitigations EmacsWiki eval
+; LocalWords:  docstring auf Wiedersehen longlines alist autoload Refactored Inc
+; LocalWords:  MERCHANTABILITY RET REGEXP VAR ELPA WS EmacsWiki eval
 ; LocalWords:  rx filename filenames
 
-;; So long, farewell, auf wiedersehen, goodbye
+;; So long, farewell, auf Wiedersehen, goodbye
 ;; You have to go, this code is minified
 ;; Goodbye!
 
diff --git a/lisp/subr.el b/lisp/subr.el
index ca5af0f0ab7..1b2a1d643fb 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -1572,7 +1572,7 @@ be a list of the form returned by `event-start' and `event-end'."
 ;; individual bytes at known offsets from the string beginning.
 ;; (make-obsolete 'string-to-unibyte   "use `encode-coding-string'." "26.1")
 ;; string-to-multibyte is also sometimes useful (and there's no good
-;; general replacement for it), so it's also been unobsoleted in Emacs 27.1.
+;; general replacement for it), so it's also been revived in Emacs 27.1.
 ;; (make-obsolete 'string-to-multibyte "use `decode-coding-string'." "26.1")
 ;; bug#23850
 (make-obsolete 'string-as-unibyte   "use `encode-coding-string'." "26.1")
diff --git a/lisp/thingatpt.el b/lisp/thingatpt.el
index 1ce4b98fd1b..c33fb174a58 100644
--- a/lisp/thingatpt.el
+++ b/lisp/thingatpt.el
@@ -634,7 +634,7 @@ Signal an error if the entire string was not used."
 (defun number-at-point ()
   "Return the number at point, or nil if none is found.
 Decimal numbers like \"14\" or \"-14.5\", as well as hex numbers
-like \"0xBEEF09\" or \"#xBEEF09\", are regognized."
+like \"0xBEEF09\" or \"#xBEEF09\", are recognized."
   (when (thing-at-point-looking-at
          "\\(-?[0-9]+\\.?[0-9]*\\)\\|\\(0x\\|#x\\)\\([a-zA-Z0-9]+\\)" 500)
     (if (match-beginning 1)
diff --git a/src/hbfont.c b/src/hbfont.c
index 5a057c26a1d..2150b6656e1 100644
--- a/src/hbfont.c
+++ b/src/hbfont.c
@@ -358,8 +358,8 @@ get_hb_unicode_funcs (void)
   hb_unicode_funcs_set_general_category_func (funcs, uni_general, NULL, NULL);
   hb_unicode_funcs_set_mirroring_func (funcs, uni_mirroring, NULL, NULL);
 
-  /* Use default implmentation for Unicode composition/decomposition, we might
-   * want to revisit this later.
+  /* Use default implementation for Unicode composition/decomposition.
+     We might want to revisit this later.
   hb_unicode_funcs_set_compose_func (funcs, uni_compose, NULL, NULL);
   hb_unicode_funcs_set_decompose_func (funcs, uni_decompose, NULL, NULL);
   */
@@ -379,7 +379,7 @@ get_hb_unicode_funcs (void)
    (N+1)th element of LGSTRING is nil, input of shaping is from the
    1st to (N)th elements.  In each input glyph, FROM, TO, CHAR, and
    CODE are already set, but FROM and TO need adjustments according
-   to the glyphs produced by the shaping fuinction.
+   to the glyphs produced by the shaping function.
    DIRECTION is either L2R or R2L, or nil if unknown.  During
    redisplay, this comes from applying the UBA, is passed from
    composition_reseat_it, and is used by the HarfBuzz shaper.
diff --git a/src/window.c b/src/window.c
index 1984a540add..c52a8ca2855 100644
--- a/src/window.c
+++ b/src/window.c
@@ -7617,7 +7617,7 @@ set_window_fringes (struct window *w,
       else
 	failed = true;
 
-      /* Placing fringes ouside margins.  */
+      /* Placing fringes outside margins.  */
       if (outside != w->fringes_outside_margins)
 	{
 	  w->fringes_outside_margins = outside;
diff --git a/src/xdisp.c b/src/xdisp.c
index 2467b336f4a..08c6927052c 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -21693,7 +21693,7 @@ extend_face_to_end_of_line (struct it *it)
 	      && indicator_column < it->last_visible_x)
 	    {
 
-	      /* Here we substract char_width because we want the
+	      /* Here we subtract char_width because we want the
 		 column indicator in the column INDICATOR_COLUMN,
 		 not after it.  */
 	      const int stretch_width =
@@ -21865,7 +21865,7 @@ extend_face_to_end_of_line (struct it *it)
       /* We need to subtract 1 to the indicator_column here because we
 	 will add the indicator IN the column indicator number, not
 	 after it.  We compare the variable it->current_x before
-	 producing the glyph.  When FRAME_WINDOW_P we substract
+	 producing the glyph.  When FRAME_WINDOW_P we subtract
 	 CHAR_WIDTH calculating STRETCH_WIDTH for the same reason.  */
       const int indicator_column =
 	fill_column_indicator_column (it, 1) - 1;
diff --git a/test/lisp/abbrev-tests.el b/test/lisp/abbrev-tests.el
index 2750e9a6263..8eee0712c22 100644
--- a/test/lisp/abbrev-tests.el
+++ b/test/lisp/abbrev-tests.el
@@ -283,7 +283,7 @@
         (inverse-add-abbrev table "Global" 1)))
     (should (string= (abbrev-expansion "foo" table) "bar"))))
 
-(ert-deftest inverse-add-abbrev-skips-trailing-nonword/postiive-arg ()
+(ert-deftest inverse-add-abbrev-skips-trailing-nonword/positive-arg ()
   "Test that adding an inverse abbrev skips trailing nonword characters."
   (let ((table (make-abbrev-table)))
     (with-temp-buffer
diff --git a/test/lisp/cedet/semantic-utest-ia.el b/test/lisp/cedet/semantic-utest-ia.el
index 61d7ea370e2..515275591f9 100644
--- a/test/lisp/cedet/semantic-utest-ia.el
+++ b/test/lisp/cedet/semantic-utest-ia.el
@@ -115,7 +115,7 @@
     (should (file-exists-p tst))
     (should-not (semantic-ia-utest tst))))
 
-(ert-deftest semantic-utest-ia-varnamse.java ()
+(ert-deftest semantic-utest-ia-varnames.java ()
   (let ((tst (expand-file-name "testvarnames.java" semantic-utest-test-directory)))
     (should (file-exists-p tst))
     (should-not (semantic-ia-utest tst))))
diff --git a/test/lisp/cedet/srecode-utest-getset.el b/test/lisp/cedet/srecode-utest-getset.el
index d69a195a128..2e82fc9c90a 100644
--- a/test/lisp/cedet/srecode-utest-getset.el
+++ b/test/lisp/cedet/srecode-utest-getset.el
@@ -21,7 +21,6 @@
 ;;
 ;; Unit tests for the getset inserter application.
 
-;;(require 'cedet-uutil)
 (require 'srecode/semantic)
 
 ;;; Code:
diff --git a/test/lisp/emacs-lisp/cl-macs-tests.el b/test/lisp/emacs-lisp/cl-macs-tests.el
index 85230447148..d3b9732b74d 100644
--- a/test/lisp/emacs-lisp/cl-macs-tests.el
+++ b/test/lisp/emacs-lisp/cl-macs-tests.el
@@ -569,14 +569,14 @@ collection clause."
                           finally return result)
                  '(2 1 0)))
 
-  ;; this nonintuitive result is replicated by clisp
+  ;; this unintuitive result is replicated by clisp
   (should (equal (cl-loop with result
                           for x below 3
                           and y = (progn (push x result))
                           finally return result)
                  '(2 1 0 0)))
 
-  ;; this nonintuitive result is replicated by clisp
+  ;; this unintuitive result is replicated by clisp
   (should (equal (cl-loop with result
                           for x below 3
                           and y = (progn (push x result)) then (progn (push (1+ x) result))
diff --git a/test/lisp/emacs-lisp/regexp-opt-tests.el b/test/lisp/emacs-lisp/regexp-opt-tests.el
index 3658964faac..6b94ccb2d5b 100644
--- a/test/lisp/emacs-lisp/regexp-opt-tests.el
+++ b/test/lisp/emacs-lisp/regexp-opt-tests.el
@@ -66,7 +66,7 @@
          (opt (regexp-opt-test--match-all perm opt-re)))
     (concat "\n"
             (format "Naïve regexp:     %s\n" ref-re)
-            (format "Optimised regexp: %s\n" opt-re)
+            (format "Optimized regexp: %s\n" opt-re)
             (format "Got:      %s\n" opt)
             (format "Expected: %s\n" ref))))
 
diff --git a/test/lisp/vc/log-edit-tests.el b/test/lisp/vc/log-edit-tests.el
index 7d77eca87d2..72d5488ec2e 100644
--- a/test/lisp/vc/log-edit-tests.el
+++ b/test/lisp/vc/log-edit-tests.el
@@ -37,7 +37,7 @@
 \(fun6):
 \(fun7): Some prose.
 \(fun8): A longer description of a complicated change.\
-  Spread over a couple of sentencences.\
+  Spread over a couple of sentences.\
   Long enough to be filled for several lines.
 \(fun9): Etc.")
     (goto-char (point-min))
@@ -46,7 +46,7 @@
 * dir/file.ext (fun1, fun2, fun3):
 * file2.txt (fun4, fun5, fun6, fun7): Some prose.
 \(fun8): A longer description of a complicated change.  Spread over a
-couple of sentencences.  Long enough to be filled for several lines.
+couple of sentences.  Long enough to be filled for several lines.
 \(fun9): Etc."))
     (let ((fill-column 20)) (log-edit-fill-entry))
     (should (equal (buffer-string) "\
@@ -59,10 +59,9 @@ Some prose.
 description of a
 complicated change.
 Spread over a couple
-of sentencences.
-Long enough to be
-filled for several
-lines.
+of sentences.  Long
+enough to be filled
+for several lines.
 \(fun9): Etc."))
     (let ((fill-column 40)) (log-edit-fill-entry))
     (should (equal (buffer-string) "\
@@ -71,21 +70,21 @@ lines.
 Some prose.
 \(fun8): A longer description of a
 complicated change.  Spread over a
-couple of sentencences.  Long enough to
-be filled for several lines.
+couple of sentences.  Long enough to be
+filled for several lines.
 \(fun9): Etc."))))
 
 (ert-deftest log-edit-fill-entry-trailing-prose ()
   (with-temp-buffer
     (insert "\
 * dir/file.ext (fun1): A longer description of a complicated change.\
-  Spread over a couple of sentencences.\
+  Spread over a couple of sentences.\
   Long enough to be filled for several lines.")
     (let ((fill-column 72)) (log-edit-fill-entry))
     (should (equal (buffer-string) "\
 * dir/file.ext (fun1): A longer description of a complicated change.
-Spread over a couple of sentencences.  Long enough to be filled for
-several lines."))))
+Spread over a couple of sentences.  Long enough to be filled for several
+lines."))))
 
 (ert-deftest log-edit-fill-entry-joining ()
   ;; Join short enough function names on the same line.
diff --git a/test/manual/cedet/tests/test-fmt.cpp b/test/manual/cedet/tests/test-fmt.cpp
index c94bcfafbca..6ae373de359 100644
--- a/test/manual/cedet/tests/test-fmt.cpp
+++ b/test/manual/cedet/tests/test-fmt.cpp
@@ -56,12 +56,12 @@ struct moose {
  * ## uml-prototype "moose{} : struct"
  */
 
-struct moose strct_fcn ( struct moose in, char *out);
+struct moose struct_fcn ( struct moose in, char *out);
 /*
- * ## name "strct_fcn"
- * ## abbreviate "strct_fcn()"
- * ## prototype "struct moose strct_fcn (struct moose in,char* out)"
- * ## uml-prototype "strct_fcn (in : struct moose,out : char*) : struct moose"
+ * ## name "struct_fcn"
+ * ## abbreviate "struct_fcn()"
+ * ## prototype "struct moose struct_fcn (struct moose in,char* out)"
+ * ## uml-prototype "struct_fcn (in : struct moose,out : char*) : struct moose"
  */
 
 struct moose *var_one = NULL;
diff --git a/test/manual/cedet/tests/test.srt b/test/manual/cedet/tests/test.srt
index b77cd4fbe29..cbc8c3f1ba1 100644
--- a/test/manual/cedet/tests/test.srt
+++ b/test/manual/cedet/tests/test.srt
@@ -57,7 +57,7 @@ template testarea :blank
 ----
 
 ;; This is a bad hack - In order for the text to parse, but also get a completion
-;; monicker into the right spot, we need to pretend a comment is the same as the
+;; moniker into the right spot, we need to pretend a comment is the same as the
 ;; escape_end.
 ;; Local variables:
 ;; comment-start-skip: "}}"
diff --git a/test/manual/etags/cp-src/functions.cpp b/test/manual/etags/cp-src/functions.cpp
index 764498d4084..7c353d161a1 100644
--- a/test/manual/etags/cp-src/functions.cpp
+++ b/test/manual/etags/cp-src/functions.cpp
@@ -28,7 +28,7 @@ void Date::setDate ( int d , int m , int y ){
 	t = mktime ( date ) ;
 }
 
-// Addition operation ::: Warning ::: A combination of addition and substraction does not give a proper result
+// Addition operation ::: Warning ::: A combination of addition and subtraction does not give a proper result
 void Date::plus ( int days , int month , int year ){
 	if ( ! set () )
 		return;
@@ -38,7 +38,7 @@ void Date::plus ( int days , int month , int year ){
 	mktime ( date );
 }
 
-//Substraction operation ::: Warning ::: A combination of addition and substraction does not give a proper result
+//Subtraction operation ::: Warning ::: A combination of addition and subtraction does not give a proper result
 void Date::minus ( int days , int month , int year ){
 	if ( ! set () )
 		return;
@@ -74,7 +74,7 @@ Date & Date::operator += ( int days ){
 	return(*this);
 }
 
-// Substract number of days
+// Subtract number of days
 Date & Date::operator -= ( int days ){
 	if ( set () ){
 		date->tm_mday -= days ;
diff --git a/test/src/buffer-tests.el b/test/src/buffer-tests.el
index 5fd37520f70..3a9b43ec4ee 100644
--- a/test/src/buffer-tests.el
+++ b/test/src/buffer-tests.el
@@ -565,7 +565,7 @@ with parameters from the *Messages* buffer modification."
 (deftest-previous-overlay-change-1 o 25 20 (30 30) (20 30))
 (deftest-previous-overlay-change-1 p 30 20 (20 20) (20 30))
 (deftest-previous-overlay-change-1 q 40 30 (20 20) (20 30))
-;; 1 empty, 1 non-empty, intersectig in the middle
+;; 1 empty, 1 non-empty, intersecting in the middle
 (deftest-previous-overlay-change-1 r 10 1 (25 25) (20 30))
 (deftest-previous-overlay-change-1 s 20 1 (25 25) (20 30))
 (deftest-previous-overlay-change-1 t 25 20 (25 25) (20 30))
@@ -969,7 +969,7 @@ with parameters from the *Messages* buffer modification."
       (should (= 25 (overlay-start right)))
       (should (= 75 (overlay-end right)))
       ;; Try to detect the error, by removing left.  The should fail
-      ;; an eassert, since it won't be found by a reular tree
+      ;; an eassert, since it won't be found by a regular tree
       ;; traversal - in theory.
       (delete-overlay left)
       (should (= 2 (length (overlays-in 1 (point-max))))))))
@@ -1045,7 +1045,7 @@ with parameters from the *Messages* buffer modification."
 ;; | make-indirect-buffer
 ;; +==========================================================================+
 
-;; Check if overlays are cloned/seperate from indirect buffer.
+;; Check if overlays are cloned/separate from indirect buffer.
 (ert-deftest test-make-indirect-buffer-1 ()
   (with-temp-buffer
     (dotimes (_ 10) (make-overlay 1 1))
diff --git a/test/src/fns-tests.el b/test/src/fns-tests.el
index 93f7f63847f..bcc652a8053 100644
--- a/test/src/fns-tests.el
+++ b/test/src/fns-tests.el
@@ -269,7 +269,7 @@
   (should (equal (base64-encode-string "\x14\xfb\x9c\x03\xd9\x7f") "FPucA9l/")))
 
 (ert-deftest fns-test-base64url-encode-region ()
-  ;; url variant wih padding
+  ;; url variant with padding
   (should (equal (fns-tests--with-region base64url-encode-region "") ""))
   (should (equal (fns-tests--with-region base64url-encode-region "f") "Zg=="))
   (should (equal (fns-tests--with-region base64url-encode-region "fo") "Zm8="))
@@ -311,7 +311,7 @@
                  (fns-tests--string-repeat "FPucA9l_" 10))))
 
 (ert-deftest fns-test-base64url-encode-string ()
-  ;; url variant wih padding
+  ;; url variant with padding
   (should (equal (base64url-encode-string "") ""))
   (should (equal (base64url-encode-string "f") "Zg=="))
   (should (equal (base64url-encode-string "fo") "Zm8="))
@@ -356,7 +356,7 @@
   (should (equal (base64-decode-string "FPucA9l+") "\x14\xfb\x9c\x03\xd9\x7e"))
   (should (equal (base64-decode-string "FPucA9l/") "\x14\xfb\x9c\x03\xd9\x7f"))
 
-  ;; no paddign
+  ;; no padding
   (should (equal (base64-decode-string "" t) ""))
   (should (equal (base64-decode-string "Zg" t) "f"))
   (should (equal (base64-decode-string "Zm8" t) "fo"))
@@ -365,7 +365,7 @@
   (should (equal (base64-decode-string "Zm9vYmE" t) "fooba"))
   (should (equal (base64-decode-string "Zm9vYmFy" t) "foobar"))
 
-  ;; url variant wih padding
+  ;; url variant with padding
   (should (equal (base64-decode-string "") ""))
   (should (equal (base64-decode-string "Zg==" t) "f") )
   (should (equal (base64-decode-string "Zm8=" t) "fo"))