repudiate vs wash one's hands of

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). 

wash one's hands of

verb
  • To absolve oneself of responsibility or future blame for; to refuse to have any further involvement with. 

How often have the words repudiate and wash one's hands of occurred in a corpus of books? (source: Google Ngram Viewer )