How I Learned to Stop Worrying and Ignore WCAG

3.1.2 Language of Parts (AA)

Summary of Language of Parts

Always mark up words in languages that aren't the default language

Exceptions to Language of Parts

Proper names
Names of people or things
Technical terms
Terms used in a professional setting; jargon
Words of Indeterminate Languages
gibberish, non-human languages, etc.
Words or Phrases that are associated with surrounding text
words adopted into a language either by themselves or as part of a phrase