harass vs strafe

harass

verb
  • To trouble (someone, or a group of people) through repeated military-style attacks. 

  • To persistently bother (someone, or a group of people) physically or psychologically when such behaviour is illegal and/or unwanted, especially over an extended period. 

  • To annoy (someone) frequently or systematically; to pester. 

  • To put excessive burdens upon (someone); to subject (someone) to anxieties. 

strafe

verb
  • To attack (ground targets) with automatic gunfire from a low-flying aircraft. 

  • To rake (a target) with rapid or automatic gunfire. 

  • To sidestep; to move sideways without turning (a core mechanic of most first-person shooters). 

noun
  • A sideways movement without turning. 

  • An attack of machine-gun or cannon fire from a low-flying aircraft. 

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