diff -u b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php
--- b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php
+++ b/core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php
@@ -20,7 +20,7 @@
  *
  * @CKEditorPlugin(
  *   id = "language",
- *   label = @Translation("Set language")
+ *   label = @Translation("Language")
  * )
  */
 class Language extends CKEditorPluginBase {
@@ -79,8 +79,8 @@
   public function getButtons() {
     return array(
       'Language' => array(
-        'label' => t('Set language button'),
-        'image_alternative' => '<a href="#" class="cke-icon-only cke_ltr" role="button" title="' . t('Set language') . '" aria-label="' . t('Set language') . '"><span class="cke_button_icon cke_button__language_icon">' . t('Set language') . '<span class="ckeditor-button-arrow"></span></span></a>',
+        'label' => t('Language button'),
+        'image_alternative' => '<a href="#" class="cke-icon-only cke_ltr" role="button" title="' . t('Language') . '" aria-label="' . t('Language') . '"><span class="cke_button_icon cke_button__language_icon">' . t('Language') . '<span class="ckeditor-button-arrow"></span></span></a>',
       ),
     );
   }