pluck up vs stoke

pluck up

verb
  • To summon positive emotion (especially courage); to muster. 

  • To remove or acquire by plucking from, for example, the ground; to pick up. 

  • To become more cheerful. 

stoke

verb
  • To encourage a behavior or emotion. 

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

  • To poke, pierce, thrust. 

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

noun
  • An act of poking, piercing, thrusting 

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