contumely vs derogation

contumely

noun
  • Offensive and abusive language or behaviour; scorn, insult. 

derogation

noun
  • An act which belittles; disparagement. 

  • The act of derogating; the temporary or partial nullification of a law. 

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