believe vs buy

believe

verb
  • To accept that someone is telling the truth. 

  • To have religious faith; to believe in a greater truth. 

  • To accept as true, particularly without absolute certainty (i.e., as opposed to knowing). 

  • To opine, think, reckon. 

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. 

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