rebuff vs repudiate

rebuff

verb
  • To refuse; to offer sudden or harsh resistance; to turn down or shut out. 

  • To buff again. 

noun
  • Repercussion, or beating back. 

  • He was surprised by her quick rebuff to his proposal. 

  • A sudden resistance or refusal. 

repudiate

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

  • To be repudiated. 

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

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

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