enemy vs false friend

enemy

noun
  • Of, by, relating to, or belonging to an enemy. 

  • A hostile force or nation; a fighting member of such a force or nation. 

  • Something harmful or threatening to another 

  • Someone who is hostile to, feels hatred towards, opposes the interests of, or intends injury to someone else. 

  • A non-player character that tries to harm the player. 

verb
  • To make an enemy of. 

false friend

noun
  • Used other than figuratively or idiomatically: see false, friend. 

  • A word in a language that bears a deceptive resemblance to a word in another language but in fact has a different meaning. 

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