athame vs hunting knife

athame

noun
  • A ceremonial pointed knife or dagger, used especially in Wicca and other neopagan traditions and typically having a black handle with magical symbols on it. 

hunting knife

noun
  • A large knife designed for use in hunting animals, usually with a smooth front edge and a back edge that is partially serrated for sawing. 

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