macaronic vs polylingual

macaronic

adj
  • Written in a hodgepodge mixture of two or more languages. 

noun
  • A work of macaronic character. 

  • A word consisting of a mix of words of two or more languages, one of which is Latin, or a non-Latin stem with a Latin ending. 

polylingual

adj
  • able to use multiple languages 

  • of or pertaining to multiple languages; multilingual 

How often have the words macaronic and polylingual occurred in a corpus of books? (source: Google Ngram Viewer )