deflect vs ward off

deflect

verb
  • To divert (attention, etc.). 

  • To touch the ball, often unwittingly, after a shot or a sharp pass, thereby making it unpredictable for the other players. 

  • To make (something) deviate from its original path. 

  • To avoid addressing (questions, criticism, etc.). 

  • To deviate from its original path. 

ward off

verb
  • To avert or prevent. 

  • To parry, or turn aside. 

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