befriend vs repudiate

befriend

verb
  • To favor. 

  • To become a friend of, to make friends with. 

repudiate

verb
  • To be repudiated. 

  • To reject the truth or validity of; to deny. 

  • To refuse to have anything to do with; to disown. 

  • To refuse to pay or honor (a debt). 

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