buy vs refuse

buy

noun
  • Something which is bought; a purchase. 

verb
  • To make a purchase or purchases, to treat (for a drink, meal or gift) 

  • To make a bluff, usually a large one. 

  • To bribe. 

  • To be equivalent to in value. 

  • To obtain (something) in exchange for money or goods. 

  • To obtain, especially by some sacrifice. 

  • to accept as true; to believe 

refuse

noun
  • Collectively, items or material that have been discarded; rubbish, garbage. 

verb
  • To decline a request or demand, forbear; to withhold permission. 

  • To melt again. 

  • To decline (a request or demand). 

  • To throw back, or cause to keep back (as the centre, a wing, or a flank), out of the regular alignment when troops are about to engage the enemy. 

adj
  • Discarded, rejected. 

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