diff -u b/token.tokens.inc b/token.tokens.inc
--- b/token.tokens.inc
+++ b/token.tokens.inc
@@ -128,7 +128,7 @@
   // Node tokens.
   $info['tokens']['node']['source'] = array(
     'name' => t('Translation source node'),
-    'description' => t("The source node for this current node's entity translation."),
+    'description' => t("The source node for this current node's translation set."),
     'type' => 'node',
   );
   $info['tokens']['node']['log'] = array(
@@ -172,11 +172,11 @@
 
   // Taxonomy term and vocabulary tokens.
   if (\Drupal::moduleHandler()->moduleExists('taxonomy')) {
-    $info['tokens']['term']['source'] = array(
+    $info['tokens']['term']['source'] = [
       'name' => t('Translation source term'),
       'description' => t("The source term for this current term's translation set."),
       'type' => 'term',
-    );
+    ];
     $info['tokens']['term']['edit-url'] = array(
       'name' => t('Edit URL'),
       'description' => t("The URL of the taxonomy term's edit page."),
@@ -193,11 +193,11 @@
       'type' => 'term',
     );
 
-    $info['tokens']['vocabulary']['source'] = array(
+    $info['tokens']['vocabulary']['source'] = [
       'name' => t('Translation source vocabulary'),
       'description' => t("The source vocabulary for this current vocabulary's translation set."),
       'type' => 'vocabulary',
-    );
+    ];
     $info['tokens']['vocabulary']['machine-name'] = array(
       'name' => t('Machine-readable name'),
       'description' => t('The unique machine-readable name of the vocabulary.'),
@@ -572,9 +572,9 @@
 
     // Chained token relationships.
     if (($parent_tokens = \Drupal::token()->findWithPrefix($tokens, 'source')) && $source_term = \Drupal::service('entity.repository')->getTranslationFromContext($term, LanguageInterface::LANGCODE_DEFAULT)) {
-      $replacements += \Drupal::token()->generate('term', $parent_tokens, array(
-        'term' => $source_term), $options,
-        $bubbleable_metadata);
+      $replacements += \Drupal::token()->generate('term', $parent_tokens, [
+        'term' => $source_term,
+      ], $options, $bubbleable_metadata);
     }
     if (($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url'))) {
       $replacements += \Drupal::token()->generate('url', $url_tokens, array('url' => $term->toUrl()), $options, $bubbleable_metadata);