perforation vs stoke

perforation

noun
  • The act of perforating or the state of being perforated. 

  • That portion of a surface that remains after an open disk is removed from it. 

  • A series of holes punched through something in order to assist in separating parts. 

  • An abnormal opening in an organ, such as a rupture. 

  • Any opening in a solid object. 

stoke

noun
  • An act of poking, piercing, thrusting 

verb
  • To attend to or supply a furnace with fuel; to act as a stoker or fireman. 

  • To poke, pierce, thrust. 

  • To encourage a behavior or emotion. 

  • To feed, stir up, especially, a fire or furnace. 

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