repudiate vs rescind

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). 

rescind

verb
  • To repeal, annul, or declare void; to take (something such as a rule or contract) out of effect. 

  • To cut away or off. 

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