guaranty vs warrantor

guaranty

noun
  • An undertaking to answer for the payment of some debt, or the performance of some contract or duty, of another, in case of the failure of such other to pay or perform; a warranty; a security. 

  • An assurance or guarantee. 

  • Something serving as a security for such an undertaking. 

warrantor

noun
  • One making a warrant to the benefit of a warrantee. 

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