diff --git a/lang/en/badges.php b/lang/en/badges.php
index 8eeed52bb47..83ab4536840 100644
--- a/lang/en/badges.php
+++ b/lang/en/badges.php
@@ -392,6 +392,3 @@ $string['visible'] = 'Visible';
 $string['warnexpired'] = ' (This badge has expired!)';
 $string['year'] = 'Year(s)';
 
-// Deprecated since Moodle 2.8.
-
-$string['hidden'] = 'Hidden';
diff --git a/lang/en/calendar.php b/lang/en/calendar.php
index 72154428caa..f60a5bf6719 100644
--- a/lang/en/calendar.php
+++ b/lang/en/calendar.php
@@ -216,6 +216,3 @@ $string['weekthis'] = 'This week';
 $string['yesterday'] = 'Yesterday';
 $string['youcandeleteallrepeats'] = 'This event is part of a repeating event series. You can delete this event only, or all {$a} events in the series at once.';
 
-// Deprecated since Moodle 2.8.
-
-$string['hidden'] = 'hidden';
diff --git a/lang/en/deprecated.txt b/lang/en/deprecated.txt
index bdc0b105c13..83a6cb4feb9 100644
--- a/lang/en/deprecated.txt
+++ b/lang/en/deprecated.txt
@@ -1,12 +1,3 @@
-hidden,core_badges
-hidden,core_calendar
-hidden,core_portfolio
-hidden,core_question
-hidden,core_repository
-hidden,core_role
-simpleview,core_grades
-fullview,core_grades
-categoriesedit,core_grades
 lockingmeans,core_cache
 lockmethod,core_cache
 lockmethod_help,core_cache
diff --git a/lang/en/grades.php b/lang/en/grades.php
index 976d96209b4..a2336f5d943 100644
--- a/lang/en/grades.php
+++ b/lang/en/grades.php
@@ -759,9 +759,3 @@ $string['writinggradebookinfo'] = 'Writing gradebook settings';
 $string['xml'] = 'XML';
 $string['yes'] = 'Yes';
 $string['yourgrade'] = 'Your grade';
-
-// Deprecated since Moodle 2.8
-
-$string['categoriesedit'] = 'Edit setup';
-$string['fullview'] = 'Full view';
-$string['simpleview'] = 'Simple view';
diff --git a/lang/en/portfolio.php b/lang/en/portfolio.php
index b9f013fa2ee..8e1ea6b907f 100644
--- a/lang/en/portfolio.php
+++ b/lang/en/portfolio.php
@@ -180,6 +180,3 @@ $string['wait'] = 'Wait';
 $string['wanttowait_high'] = 'It is not recommended that you wait for this transfer to complete, but you can if you\'re sure and know what you\'re doing';
 $string['wanttowait_moderate'] = 'Do you want to wait for this transfer? It might take a few minutes';
 
-// Deprecated since Moodle 2.8.
-
-$string['hidden'] = 'Hidden';
diff --git a/lang/en/question.php b/lang/en/question.php
index 10f7c99d2fb..126fb084406 100644
--- a/lang/en/question.php
+++ b/lang/en/question.php
@@ -443,6 +443,3 @@ $string['withselected'] = 'With selected';
 $string['xoutofmax'] = '{$a->mark} out of {$a->max}';
 $string['yougotnright'] = 'You have correctly selected {$a->num}.';
 
-// Deprecated since Moodle 2.8.
-
-$string['hidden'] = 'Hidden';
diff --git a/lang/en/repository.php b/lang/en/repository.php
index 7291f807dbf..845f0998086 100644
--- a/lang/en/repository.php
+++ b/lang/en/repository.php
@@ -243,8 +243,5 @@ $string['wrongcontext'] = 'You cannot access to this context';
 $string['xhtmlerror'] = 'You are probably using an XHTML strict header. Certain YUI components don\'t work in this mode; please turn it off.';
 $string['ziped'] = 'Compress folder successfully';
 
-// Deprecated since Moodle 2.8.
-$string['hidden'] = 'Hidden';
-
 // Deprecated since Moodle 2.9.
 $string['personalrepositories'] = 'Available repository instances';
diff --git a/lang/en/role.php b/lang/en/role.php
index 57ef1c1103a..c3e2378be21 100644
--- a/lang/en/role.php
+++ b/lang/en/role.php
@@ -422,6 +422,3 @@ $string['whydoesusernothavecap'] = 'Why does {$a->fullname} not have capability
 $string['xroleassignments'] = '{$a}\'s role assignments';
 $string['xuserswiththerole'] = 'Users with the role "{$a->role}"';
 
-// Deprecated since Moodle 2.8.
-
-$string['hidden'] = 'Hidden';
diff --git a/mod/quiz/lang/en/deprecated.txt b/mod/quiz/lang/en/deprecated.txt
index 8162c480c32..b983d16e3cc 100644
--- a/mod/quiz/lang/en/deprecated.txt
+++ b/mod/quiz/lang/en/deprecated.txt
@@ -1,10 +1,2 @@
-categories,mod_quiz
-category,mod_quiz
-export,mod_quiz
-import,mod_quiz
-invalidnumericanswer,mod_quiz
-invalidnumerictolerance,mod_quiz
-multiplier,mod_quiz
 timelimitmin,mod_quiz
 timelimitsec,mod_quiz
-unusedcategorydeleted,mod_quiz
diff --git a/mod/quiz/lang/en/quiz.php b/mod/quiz/lang/en/quiz.php
index df0c5ef6b3e..798d097ba4e 100644
--- a/mod/quiz/lang/en/quiz.php
+++ b/mod/quiz/lang/en/quiz.php
@@ -888,8 +888,6 @@ $string['timelimit'] = 'Time limit';
 $string['timelimit_help'] = 'If enabled, the time limit is stated on the initial quiz page and a countdown timer is displayed in the quiz navigation block.';
 $string['timelimit_link'] = 'mod/quiz/timing';
 $string['timelimitexeeded'] = 'Sorry! Quiz time limit exceeded!';
-$string['timelimitmin'] = 'Time limit (minutes)';
-$string['timelimitsec'] = 'Time limit (seconds)';
 $string['timestr'] = '%H:%M:%S on %d/%m/%y';
 $string['timesup'] = 'Time is up!';
 $string['timetaken'] = 'Time taken';
@@ -933,13 +931,7 @@ $string['xhtml'] = 'XHTML';
 $string['youneedtoenrol'] = 'You need to enrol in this course before you can attempt this quiz';
 $string['yourfinalgradeis'] = 'Your final grade for this quiz is {$a}.';
 
-// Deprecated since Moodle 2.8.
+// Deprecated since Moodle 2.9.
 
-$string['categories'] = 'Categories';
-$string['category'] = 'Category';
-$string['export'] = 'Export';
-$string['import'] = 'Import';
-$string['invalidnumericanswer'] = 'One of the answers you entered was not a valid number.';
-$string['invalidnumerictolerance'] = 'One of the tolerances you entered was not a valid number.';
-$string['multiplier'] = 'Multiplier';
-$string['unusedcategorydeleted'] = 'This category has been deleted because, after deleting the course, its questions weren\'t used any more.';
+$string['timelimitmin'] = 'Time limit (minutes)';
+$string['timelimitsec'] = 'Time limit (seconds)';