cynanthropy vs madness

cynanthropy

noun
  • A delusion in which a person believes he or she is transformed into a dog. 

  • A shape-shifting ability between human and canine forms. 

madness

noun
  • The state of being mad; insanity; mental disease. 

  • rash folly 

  • The state of being angry. 

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