abrogation vs disaffirmation

abrogation

noun
  • The act of abrogating; a repeal by authority; abolition. 

disaffirmation

noun
  • Repudiation of self or other. 

  • The act of denial; a declaration that something is not true. 

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