necromancy vs supernaturalism

necromancy

noun
  • Divination involving the dead or death. 

  • Synonym of necroposting 

  • Loosely, any sorcery or witchcraft, especially involving death or the dead, particularly sorcery involving raising or reanimating the dead. 

supernaturalism

noun
  • A belief in the doctrine of supernatural or divine agency as manifested in the world, in human events, religious revelation, miracles, etc. 

  • The quality or condition of being supernatural. 

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