obeah vs witchdom

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. 

witchdom

noun
  • The exercise of witchcraft or of supernatural powers; witchery 

  • The world of witches or of witchcraft; witches collectively 

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