lycanthropy vs schizophrenia

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. 

schizophrenia

noun
  • A psychiatric diagnosis denoting a persistent, often chronic, mental illness characterised by abnormal perception, thinking, behavior and emotion, often marked by delusions. 

  • Any condition in which disparate or mutually exclusive activities coexist; a lack of decision between options. 

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