calumny vs slander

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. 

slander

noun
  • A false or unsupported, malicious statement (spoken, not written), especially one which is injurious to a person's reputation; the making of such a statement. 

  • A collection of humorous videos intended to poke fun at a certain group of people, such as a community or nation 

verb
  • To utter a slanderous statement about; baselessly speak ill of. 

  • To poke fun at a certain group of people 

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