endorse vs repudiate

endorse

verb
  • To report (a symptom); to describe. 

  • To write one's signature on the back of a cheque, or other negotiable instrument, when transferring it to a third party, or cashing it. 

  • To express support or approval, especially officially or publicly. 

  • To give an endorsement. 

noun
  • A diminutive of the pale, usually appearing in pairs on either side of a pale. 

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 endorse and repudiate occurred in a corpus of books? (source: Google Ngram Viewer )