dragnet vs gaff

dragnet

verb
  • To drag a net across the bottom of a body of water. 

  • To make heightened efforts to catch a suspect. 

noun
  • Heightened efforts by law-enforcement personnel to capture suspects. 

  • A net dragged across the bottom of a body of water. 

gaff

verb
  • To use a gaff, especially to land a fish. 

  • To cheat or hoax. 

  • To doctor or modify for deceptive purposes. 

  • To affix gaffer tape to, or cover with gaffer tape. 

  • To gamble. 

noun
  • Rough or harsh treatment; criticism. 

  • A place of residence. 

  • A trick or con. 

  • A minor error or faux pas, a gaffe. 

  • The upper spar used to control a gaff-rigged sail. 

  • A tool consisting of a large metal hook with a handle or pole, especially the one used to pull large fish aboard a boat. 

  • A type of tight, panty-like underwear worn to hold the male genitalia tucked backwards and make one's genital region look smooth, as if one had a vulva. 

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