assent vs repudiation

assent

noun
  • agreement; act of agreeing 

verb
  • To agree to a proposal. 

repudiation

noun
  • The act of refusing to accept; the act of repudiating. 

  • The young man's repudiation of the church's doctrines caused a conflict with his religious parents. 

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