buy vs disagree

buy

verb
  • to accept as true; to believe 

  • 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. 

noun
  • Something which is bought; a purchase. 

disagree

verb
  • To fail to agree; to have a different opinion or belief. 

  • To fail to conform or correspond with. 

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