diff --git a/mod/lesson/lang/en/deprecated.txt b/mod/lesson/lang/en/deprecated.txt
new file mode 100644
index 00000000000..fa96fa1636b
--- /dev/null
+++ b/mod/lesson/lang/en/deprecated.txt
@@ -0,0 +1,4 @@
+additionalattemptsremaining,mod_lesson
+lessoncloseson,mod_lesson
+lessonname,mod_lesson
+xattempts,mod_lesson
\ No newline at end of file
diff --git a/mod/lesson/lang/en/lesson.php b/mod/lesson/lang/en/lesson.php
index 62eb108d8fb..0e0b753ccd4 100644
--- a/mod/lesson/lang/en/lesson.php
+++ b/mod/lesson/lang/en/lesson.php
@@ -55,7 +55,6 @@ $string['addmultichoice'] = 'Create a Multichoice question page';
 $string['addnewgroupoverride'] = 'Add group override';
 $string['addnewuseroverride'] = 'Add user override';
 $string['addnumerical'] = 'Create a Numerical question page';
-$string['additionalattemptsremaining'] = 'Completed, You can re-attempt this lesson';
 $string['addpage'] = 'Add a page';
 $string['addshortanswer'] = 'Create a Short answer question page';
 $string['addtruefalse'] = 'Create a True/false question page';
@@ -284,14 +283,12 @@ $string['lesson:grade'] = 'Grade lesson essay questions';
 $string['lessonclosed'] = 'This lesson closed on {$a}.';
 $string['lessoncloses'] = 'Lesson closes';
 $string['lessoneventcloses'] = '{$a} closes';
-$string['lessoncloseson'] = 'Lesson closes on {$a}';
 $string['lesson:edit'] = 'Edit a lesson activity';
 $string['lessonformating'] = 'Lesson formatting';
 $string['lesson:manage'] = 'Manage a lesson activity';
 $string['lesson:manageoverrides'] = 'Manage lesson overrides';
 $string['lesson:view'] = 'View lesson activity';
 $string['lesson:viewreports'] = 'View lesson reports';
-$string['lessonname'] = 'Lesson: {$a}';
 $string['lessonmenu'] = 'Lesson menu';
 $string['lessonnotready'] = 'This lesson is not ready to be taken.  Please contact your {$a}.';
 $string['lessonnotready2'] = 'This lesson is not ready to be taken.';
@@ -584,10 +581,14 @@ $string['whatdofirst'] = 'What would you like to do first?';
 $string['wronganswerjump'] = 'Wrong answer jump';
 $string['wronganswerscore'] = 'Wrong answer score';
 $string['wrongresponse'] = 'Wrong response';
-$string['xattempts'] = '{$a} attempts';
 $string['youhaveseen'] = 'You have seen more than one page of this lesson already.<br />Do you want to start at the last page you saw?';
 $string['youranswer'] = 'Your answer';
 $string['yourcurrentgradeis'] = 'Your current grade is {$a}';
 $string['yourcurrentgradeisoutof'] = 'Your current grade is {$a->grade} out of {$a->total}';
 $string['youshouldview'] = 'You should answer at least: {$a}';
 
+// Deprecated since Moodle 3.8.
+$string['additionalattemptsremaining'] = 'Completed, You can re-attempt this lesson';
+$string['lessoncloseson'] = 'Lesson closes on {$a}';
+$string['lessonname'] = 'Lesson: {$a}';
+$string['xattempts'] = '{$a} attempts';