blowgun vs dagger

blowgun

noun
  • A hollow tube through which a dart or similar missile may be blown. 

dagger

verb
  • To pierce with a dagger; to stab. 

noun
  • A stabbing weapon, similar to a sword but with a short, double-edged blade. 

  • The text character †; the obelus. 

  • A timber placed diagonally in a ship's frame. 

  • A point scored near the end of the game (clutch time) to take or increase the scorer's team lead, so that they are likely to win. 

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