calumny vs denunciation

calumny

noun
  • A false accusation or charge brought to tarnish another's reputation or standing. 

  • Falsifications or misrepresentations intended to disparage or discredit another. 

verb
  • To make false accusations or levy false charges against a person with the intent to tarnish that person's reputation or standing; to calumniate. 

denunciation

noun
  • The act of denouncing; an accusation made in public 

  • The announcement of termination (of a treaty). 

  • Proclamation; announcement; a publishing. 

  • That by which anything is denounced; threat of evil; public menace or accusation; arraignment. 

  • An open declaration of personal fault. 

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