obeah vs witchery

obeah

noun
  • A magician or witch doctor of the magic craft. 

  • A spell performed in the practice of the magic craft; an item associated with such a spell. 

  • A form of folk magic, medicine or witchcraft originating in Africa and practised in parts of the Caribbean. 

verb
  • To bewitch using this kind of folk magic. 

witchery

noun
  • Witchcraft. 

  • Allure, charm, magic. 

  • An act of witchcraft. 

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