; Fix typos: prefer US spelling.

11 files changed, 39 insertions, 39 deletions

diff --git a/doc/misc/modus-themes.org b/doc/misc/modus-themes.org
index 2c49cbdd72b..6b1d91c396a 100644
--- a/doc/misc/modus-themes.org
+++ b/doc/misc/modus-themes.org
@@ -481,7 +481,7 @@ By default, customizing a theme-related user option through the Custom
 interfaces or with {{{kbd(M-x customize-set-variable)}}} will not reload the
 currently active Modus theme.
 
-Enable this behaviour by setting this variable to ~nil~.
+Enable this behavior by setting this variable to ~nil~.
 
 ** Option for color-coding success state
 :properties:
@@ -649,7 +649,7 @@ tables and code blocks to always inherit from the ~fixed-pitch~ face.
 This is to ensure that those constructs remain monospaced even when
 users opt for a mode that remaps typeface families, such as the built-in
 {{{kbd(M-x variable-pitch-mode)}}}.  Otherwise the layout would appear
-broken, due to how spacing is done.  To disable this behaviour, set the
+broken, due to how spacing is done.  To disable this behavior, set the
 option to ~t~.
 
 Users may prefer to use another package for handling mixed typeface
@@ -2069,7 +2069,7 @@ contrast on an on-demand basis.
 
 One way to achieve this is to design a command that cycles through three
 distinct levels of intensity, though the following can be adapted to any
-kind of cyclic behaviour, such as to switch between red, green, and
+kind of cyclic behavior, such as to switch between red, green, and
 blue.
 
 In the following example, we employ the ~modus-themes-color~ function
diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex
index 0d86b25dc41..e798ae1c2c3 100644
--- a/doc/misc/texinfo.tex
+++ b/doc/misc/texinfo.tex
@@ -7660,7 +7660,7 @@ might help (with 'rm \jobname.?? \jobname.??s')%
 % If SUBTOPIC is present, precede it with a space, and call \doind.
 % (At some time during the 20th century, this made a two-level entry in an
 % index such as the operation index.  Nobody seemed to notice the change in
-% behaviour though.)
+% behavior though.)
 \def\dosubind#1#2#3{%
   \def\thirdarg{#3}%
   \ifx\thirdarg\empty
diff --git a/etc/themes/modus-themes.el b/etc/themes/modus-themes.el
index 6068bf47ce5..f49a809e491 100644
--- a/etc/themes/modus-themes.el
+++ b/etc/themes/modus-themes.el
@@ -1679,7 +1679,7 @@ By default, customizing a theme-related user option through the
 Custom interfaces or with `customize-set-variable' will not
 reload the currently active Modus theme.
 
-Enable this behaviour by setting this variable to nil."
+Enable this behavior by setting this variable to nil."
   :group 'modus-themes
   :package-version '(modus-themes . "1.5.0")
   :version "28.1"
diff --git a/lisp/icomplete.el b/lisp/icomplete.el
index 7b7cc5b8bdf..96172574709 100644
--- a/lisp/icomplete.el
+++ b/lisp/icomplete.el
@@ -587,7 +587,7 @@ Usually run by inclusion in `minibuffer-setup-hook'."
                           ;; select it -- again, as desired.
                           ;;
                           ;; FIXME: it's arguable that this second
-                          ;; behaviour should be a property of the
+                          ;; behavior should be a property of the
                           ;; completion table and not the completion
                           ;; frontend such as we have done
                           ;; here. However, it seems generically
diff --git a/lisp/net/rcirc.el b/lisp/net/rcirc.el
index 8feef6beebe..b23b0d64ae6 100644
--- a/lisp/net/rcirc.el
+++ b/lisp/net/rcirc.el
@@ -3437,7 +3437,7 @@ form \"PARAMETER\" to enable a feature, \"PARAMETER=VALUE\" to
 configure a specific option or \"-PARAMETER\" to disable a
 previously specified feature.  SENDER is passed on to
 `rcirc-handler-generic'.  PROCESS is the process object for the
-current connection.  Note that this is not the behaviour as
+current connection.  Note that this is not the behavior as
 specified in RFC2812, where 005 stood for RPL_BOUNCE."
   (rcirc-handler-generic process "005" sender args text)
   (with-rcirc-process-buffer process
diff --git a/lisp/progmodes/elisp-mode.el b/lisp/progmodes/elisp-mode.el
index 101c323b132..bdd7751fc0c 100644
--- a/lisp/progmodes/elisp-mode.el
+++ b/lisp/progmodes/elisp-mode.el
@@ -1710,7 +1710,7 @@ which see."
 (defalias 'elisp-eldoc-documentation-function 'elisp--documentation-one-liner
   "Return Elisp documentation for the thing at point as one-line string.
 This is meant as a backward compatibility aide to the \"old\"
-Elisp eldoc behaviour.  Consider variable docstrings and function
+Elisp eldoc behavior.  Consider variable docstrings and function
 signatures only, in this order.  If none applies, returns nil.
 Changes to `eldoc-documentation-functions' and
 `eldoc-documentation-strategy' are _not_ reflected here.  As such
diff --git a/lisp/progmodes/hideif.el b/lisp/progmodes/hideif.el
index 68b085d42f4..f6a4711e244 100644
--- a/lisp/progmodes/hideif.el
+++ b/lisp/progmodes/hideif.el
@@ -109,7 +109,7 @@
 ;;
 ;; Extensively modified by Luke Lee in 2013 to support complete C expression
 ;; evaluation and argumented macro expansion; C++11, C++14, C++17, GCC
-;; extension literals and gcc/clang matching behaviours are supported in 2021.
+;; extension literals and gcc/clang matching behaviors are supported in 2021.
 ;; Various floating point types and operations are also supported but the
 ;; actual precision is limited by the Emacs internal floating representation,
 ;; which is the C data type "double" or IEEE binary64 format.
diff --git a/lisp/so-long.el b/lisp/so-long.el
index f4ae71d9058..17af532249c 100644
--- a/lisp/so-long.el
+++ b/lisp/so-long.el
@@ -90,7 +90,7 @@
 ;; * Overview of modes and commands
 ;; --------------------------------
 ;; - `global-so-long-mode' - A global minor mode which enables the automated
-;;    behaviour, causing the user's preferred action to be invoked whenever a
+;;    behavior, causing the user's preferred action to be invoked whenever a
 ;;    newly-visited file contains excessively long lines.
 ;; - `so-long-mode' - A major mode, and the default action.
 ;; - `so-long-minor-mode' - A minor mode version of the major mode, and an
@@ -111,7 +111,7 @@
 ;;
 ;; On rare occasions you may choose to manually invoke the `so-long' command,
 ;; which invokes your preferred `so-long-action' (exactly as the automatic
-;; behaviour would do if it had detected long lines).  You might use this if a
+;; behavior would do if it had detected long lines).  You might use this if a
 ;; problematic file did not meet your configured criteria, and you wished to
 ;; trigger the performance improvements manually.
 ;;
@@ -120,7 +120,7 @@
 ;; available to `so-long' but, like any other mode, they can be invoked directly
 ;; if you have a need to do that (see also "Other ways of using so-long" below).
 ;;
-;; If the behaviour ever triggers when you did not want it to, you can use the
+;; If the behavior ever triggers when you did not want it to, you can use the
 ;; `so-long-revert' command to restore the buffer to its original state.
 
 ;; * Basic configuration
@@ -199,7 +199,7 @@
 ;;
 ;; Note that `so-long-minor-modes' is not useful for other global minor modes
 ;; (as distinguished from globalized minor modes), but in some cases it will be
-;; possible to inhibit or otherwise counter-act the behaviour of a global mode
+;; possible to inhibit or otherwise counter-act the behavior of a global mode
 ;; by overriding variables, or by employing hooks (see below).  You would need
 ;; to inspect the code for a given global mode (on a case by case basis) to
 ;; determine whether it's possible to inhibit it for a single buffer -- and if
@@ -211,7 +211,7 @@
 ;; If `so-long-action' is set to either `so-long-mode' or `so-long-minor-mode',
 ;; the buffer-local value for each variable in the list is set to the associated
 ;; value in the alist.  Use this to enforce values which will improve
-;; performance or otherwise avoid undesirable behaviours.  If `so-long-revert'
+;; performance or otherwise avoid undesirable behaviors.  If `so-long-revert'
 ;; is called, then the original values are restored.
 
 ;; * Retaining minor modes and settings when switching to `so-long-mode'
@@ -273,7 +273,7 @@
 ;; `so-long-mode', completely bypassing the automated decision process.
 ;; Refer to M-: (info "(emacs) Specifying File Variables") RET
 ;;
-;; If so-long itself causes problems, disable the automated behaviour with
+;; If so-long itself causes problems, disable the automated behavior with
 ;; M-- M-x global-so-long-mode, or M-: (global-so-long-mode 0)
 
 ;; * Example configuration
@@ -313,7 +313,7 @@
 ;;   (add-hook 'js-mode-hook 'my-js-mode-hook)
 ;;
 ;;   (defun my-js-mode-hook ()
-;;     "Custom `js-mode' behaviours."
+;;     "Custom `js-mode' behaviors."
 ;;     (setq-local so-long-max-lines 100)
 ;;     (setq-local so-long-threshold 1000))
 ;;
@@ -327,7 +327,7 @@
 ;;   (add-hook 'nxml-mode-hook 'my-nxml-mode-hook)
 ;;
 ;;   (defun my-nxml-mode-hook ()
-;;     "Custom `nxml-mode' behaviours."
+;;     "Custom `nxml-mode' behaviors."
 ;;     (require 'so-long)
 ;;     (setq-local so-long-variable-overrides
 ;;                 (remove '(bidi-inhibit-bpa . t) so-long-variable-overrides)))
@@ -380,7 +380,7 @@
 ;; meaning you would need to add to `safe-local-variable-values' in order to
 ;; avoid being queried about them.
 ;;
-;; Finally, the `so-long-predicate' user option enables the automated behaviour
+;; Finally, the `so-long-predicate' user option enables the automated behavior
 ;; to be determined by a custom function, if greater control is needed.
 
 ;; * Implementation notes
@@ -397,7 +397,7 @@
 
 ;; * Caveats
 ;; ---------
-;; The variables affecting the automated behaviour of this library (such as
+;; The variables affecting the automated behavior of this library (such as
 ;; `so-long-action') can be used as file- or dir-local values in Emacs 26+, but
 ;; not in previous versions of Emacs.  This is on account of improvements made
 ;; to `normal-mode' in 26.1, which altered the execution order with respect to
@@ -462,7 +462,7 @@
 ;; 0.6   - Added `so-long-minor-modes' and `so-long-hook'.
 ;; 0.5   - Renamed library to "so-long.el".
 ;;       - Added explicit `so-long-enable' command to activate our advice.
-;; 0.4   - Amended/documented behaviour with file-local 'mode' variables.
+;; 0.4   - Amended/documented behavior with file-local 'mode' variables.
 ;; 0.3   - Defer to a file-local 'mode' variable.
 ;; 0.2   - Initial release to EmacsWiki.
 ;; 0.1   - Experimental.
@@ -490,7 +490,7 @@
   ;; automatically."; however `so-long--ensure-enabled' may forcibly re-enable
   ;; it contrary to the user's expectations, so for the present this should be
   ;; considered internal-use only (with `global-so-long-mode' the interface
-  ;; for enabling or disabling the automated behaviour).  FIXME: Establish a
+  ;; for enabling or disabling the automated behavior).  FIXME: Establish a
   ;; way to support the original use-case, or rename to `so-long--enabled'.
   "Internal use.  Non-nil when any `so-long' functionality has been used.")
 
@@ -586,7 +586,7 @@ files would prevent Emacs from handling them correctly."
 (defcustom so-long-invisible-buffer-function #'so-long-deferred
   "Function called in place of `so-long' when the buffer is not displayed.
 
-This affects the behaviour of `global-so-long-mode'.
+This affects the behavior of `global-so-long-mode'.
 
 We treat invisible buffers differently from displayed buffers because, in
 cases where a library is using a buffer for behind-the-scenes processing,
@@ -618,7 +618,7 @@ the mentioned options might interfere with some intended processing."
                                'so-long-detected-long-line-p)
   "Function called after `set-auto-mode' to decide whether action is needed.
 
-This affects the behaviour of `global-so-long-mode'.
+This affects the behavior of `global-so-long-mode'.
 
 Only called if the major mode is a member of `so-long-target-modes'.
 
@@ -703,7 +703,7 @@ will be automatically processed; but custom actions can also do these things.
 The value `longlines-mode' causes that minor mode to be enabled.  See
 longlines.el for more details.
 
-Each action likewise determines the behaviour of `so-long-revert'.
+Each action likewise determines the behavior of `so-long-revert'.
 
 If the value is nil, or not defined in `so-long-action-alist', then no action
 will be taken."
@@ -753,7 +753,7 @@ If ACTION-ARG is provided, it is used in place of `so-long-action'."
 (defcustom so-long-file-local-mode-function 'so-long-mode-downgrade
   "Function to call during `set-auto-mode' when a file-local mode is set.
 
-This affects the behaviour of `global-so-long-mode'.
+This affects the behavior of `global-so-long-mode'.
 
 The specified function will be called with a single argument, being the
 file-local mode which was established.
@@ -855,7 +855,7 @@ By default this happens if `so-long-action' is set to either `so-long-mode'
 or `so-long-minor-mode'.  If `so-long-revert' is subsequently invoked, then the
 disabled modes are re-enabled by calling them with the numeric argument 1.
 
-`so-long-hook' can be used where more custom behaviour is desired.
+`so-long-hook' can be used where more custom behavior is desired.
 
 Please submit bug reports to recommend additional modes for this list, whether
 they are in Emacs core, GNU ELPA, or elsewhere."
@@ -1312,7 +1312,7 @@ This minor mode is a standard `so-long-action' option."
   (if so-long-minor-mode ;; We are enabling the mode.
       (progn
         ;; Housekeeping.  `so-long-minor-mode' might be invoked directly rather
-        ;; than via `so-long', so replicate the necessary behaviours.  The minor
+        ;; than via `so-long', so replicate the necessary behaviors.  The minor
         ;; mode also cares about whether `so-long' was already active, as we do
         ;; not want to remember values which were (potentially) overridden
         ;; already.
@@ -1387,9 +1387,9 @@ values), despite potential performance issues, type \\[so-long-revert].
 Use \\[so-long-commentary] for more information.
 
 Use \\[so-long-customize] to open the customization group `so-long' to
-configure the behaviour."
+configure the behavior."
   ;; Housekeeping.  `so-long-mode' might be invoked directly rather than via
-  ;; `so-long', so replicate the necessary behaviours.  We could use this same
+  ;; `so-long', so replicate the necessary behaviors.  We could use this same
   ;; test in `so-long-after-change-major-mode' to run `so-long-hook', but that's
   ;; not so obviously the right thing to do, so I've omitted it for now.
   (unless so-long--calling
@@ -1435,7 +1435,7 @@ configure the behaviour."
 This advice acts before `so-long-mode', with the previous mode still active."
   (unless (derived-mode-p 'so-long-mode)
     ;; Housekeeping.  `so-long-mode' might be invoked directly rather than
-    ;; via `so-long', so replicate the necessary behaviours.
+    ;; via `so-long', so replicate the necessary behaviors.
     (unless so-long--calling
       (so-long-remember-all :reset))
     ;; Remember the original major mode, regardless.
@@ -1549,7 +1549,7 @@ This is the `so-long-revert-function' for `so-long-mode'."
     ;; Emacs 26+ has already called `hack-local-variables' (during
     ;; `run-mode-hooks'; provided there was a `buffer-file-name'), but for older
     ;; versions we need to call it here.  In Emacs 26+ the revised 'HANDLE-MODE'
-    ;; argument is set to `no-mode' (being the non-nil-and-non-t behaviour),
+    ;; argument is set to `no-mode' (being the non-nil-and-non-t behavior),
     ;; which we mimic here by binding `so-long--hack-local-variables-no-mode',
     ;; in order to prevent a local 'mode' variable from clobbering the major
     ;; mode we have just called.
@@ -1590,7 +1590,7 @@ because we do not want to downgrade the major mode in that scenario."
     ;; Act only if `so-long-mode' would be enabled by the current action.
     (when (and (symbolp (so-long-function))
                (provided-mode-derived-p (so-long-function) 'so-long-mode))
-      ;; Downgrade from `so-long-mode' to the `so-long-minor-mode' behaviour.
+      ;; Downgrade from `so-long-mode' to the `so-long-minor-mode' behavior.
       (setq so-long-function 'turn-on-so-long-minor-mode
             so-long-revert-function 'turn-off-so-long-minor-mode))))
 
@@ -1610,7 +1610,7 @@ and cannot be conveniently intercepted, so we are forced to replicate it here.
 
 This special-case code will ultimately be removed from Emacs, as it exists to
 deal with a deprecated feature; but until then we need to replicate it in order
-to inhibit our own behaviour in the presence of a header comment `mode'
+to inhibit our own behavior in the presence of a header comment `mode'
 declaration.
 
 If a file-local mode is detected in the header comment, then we call the
@@ -1747,7 +1747,7 @@ by testing the value against `major-mode'; but as we may have changed the
 major mode to `so-long-mode' by this point, that protection is insufficient
 and so we need to perform our own test.
 
-We likewise need to support an equivalent of the `no-mode' behaviour in 26.1+
+We likewise need to support an equivalent of the `no-mode' behavior in 26.1+
 to ensure that `so-long-mode-revert' will not restore a file-local mode again
 after it has already reverted to the original mode.
 
@@ -1895,7 +1895,7 @@ When such files are detected by `so-long-predicate', we invoke the selected
 Use \\[so-long-commentary] for more information.
 
 Use \\[so-long-customize] to open the customization group `so-long' to
-configure the behaviour."
+configure the behavior."
   :global t
   :group 'so-long
   (if global-so-long-mode
diff --git a/test/lisp/so-long-tests/so-long-tests.el b/test/lisp/so-long-tests/so-long-tests.el
index 23a5660df59..670ab52cef6 100644
--- a/test/lisp/so-long-tests/so-long-tests.el
+++ b/test/lisp/so-long-tests/so-long-tests.el
@@ -59,7 +59,7 @@
 (declare-function so-long-tests-assert-and-revert "so-long-tests-helpers")
 (declare-function so-long-tests-predicates "so-long-tests-helpers")
 
-;; Enable the automated behaviour for all tests.
+;; Enable the automated behavior for all tests.
 (global-so-long-mode 1)
 
 (ert-deftest so-long-tests-threshold-under ()
@@ -210,7 +210,7 @@
       ;; From Emacs 27 the `display-buffer' call is insufficient.
       ;; The various 'window change functions' are now invoked by the
       ;; redisplay, and redisplay does nothing at all in batch mode,
-      ;; so we cannot test under this revised behaviour.  Refer to:
+      ;; so we cannot test under this revised behavior.  Refer to:
       ;; https://lists.gnu.org/r/emacs-devel/2019-10/msg00971.html
       ;; For interactive (non-batch) test runs, calling `redisplay'
       ;; does do the trick; so do that first.
diff --git a/test/src/fns-tests.el b/test/src/fns-tests.el
index 4d59f349bab..e27a40f644b 100644
--- a/test/src/fns-tests.el
+++ b/test/src/fns-tests.el
@@ -788,7 +788,7 @@
   (should (equal 1 (string-distance "ab" "a我b")))
   (should (equal 1 (string-distance "我" "她")))
 
-  ;; correct behaviour with empty strings
+  ;; correct behavior with empty strings
   (should (equal 0 (string-distance "" "")))
   (should (equal 0 (string-distance "" "" t)))
   (should (equal 1 (string-distance "x" "")))
diff --git a/test/src/keymap-tests.el b/test/src/keymap-tests.el
index 1dbaf7ef2e7..d7b9e8440ed 100644
--- a/test/src/keymap-tests.el
+++ b/test/src/keymap-tests.el
@@ -125,7 +125,7 @@
 ;;   ...)
 
 (ert-deftest keymap-lookup-key/mixed-case ()
-  "Backwards compatibility behaviour (Bug#50752)."
+  "Backwards compatibility behavior (Bug#50752)."
   (let ((map (make-keymap)))
     (define-key map [menu-bar foo bar] 'foo)
     (should (eq (lookup-key map [menu-bar foo bar]) 'foo))