cynanthropy vs hydrophobia

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. 

hydrophobia

noun
  • An aversion to water, as a symptom of rabies; the disease of rabies itself. 

  • A morbid fear of water; aquaphobia. 

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