obeah vs witchcraft

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. 

witchcraft

noun
  • The practice of witches; magic, sorcery, or the use of supernatural powers to influence or predict events. 

  • Something, such as an advanced technology, that seems almost magical. 

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