mess with vs retard

mess with

verb
  • To diss; to put down. 

  • To interfere with. 

  • To admire, enjoy, or approve of. 

  • To joke around with or dupe someone, in either a friendly or unfriendly manner. 

retard

verb
  • To put off; to postpone. 

  • To decelerate; to slow down. 

  • To keep delaying; to continue to hinder; to prevent from progressing. 

noun
  • Retardation; delay. 

  • A slowing down of the tempo; a ritardando. 

  • A person or being who is extremely stupid or slow to learn. 

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