ardor vs salacity

ardor

noun
  • Spirit; enthusiasm; passion. 

  • Intense heat. 

  • Great warmth of feeling; fervor; passion. 

salacity

noun
  • The state or quality of being salacious; lewdness, obscenity, bawdiness. 

  • An act that is salacious, (lewd, obscene or bawdy); a salacious image or piece of writing. 

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