lycanthropy vs psychopathy

lycanthropy

noun
  • A delusion in which one believes oneself to be a wolf or other wild animal. 

  • The state of being a person who can shapeshift between the form of a human being and an animal, whether or not it is a wolf. 

  • The state of being a lycanthrope (or werewolf), a person who can shapeshift between the form of a human being and a wolf, often said to happen involuntarily during a full moon; werewolfdom. 

psychopathy

noun
  • A personality disorder indicated by a pattern of lying, exploitation, heedlessness, arrogance, sexual promiscuity, low self-control, and lack of empathy and remorse. Violent and criminal offenses may be indicative of this disorder. 

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