filth vs salacity

filth

noun
  • A vile or disgusting person. 

  • Smut; that which sullies or defiles the moral character; corruption; pollution. 

  • The police. 

  • Dirt; foul matter; that which soils or defiles. 

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 filth and salacity occurred in a corpus of books? (source: Google Ngram Viewer )