dagger vs singlestick

dagger

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. 

verb
  • To pierce with a dagger; to stab. 

singlestick

noun
  • A one-handed wooden stick used for fencing in place of a sword. 

  • A martial art, sport or exercise using a cudgel or backsword. 

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