hex vs obeah

hex

noun
  • A witch. 

  • A spell (now rare but still found in compounds such as hex sign and hexcraft). 

  • A hexagonal space on a game board. 

  • An evil spell or curse. 

  • a hexagon-shaped item of rock climbing equipment intended to be wedged into a crack or other opening in the rock. 

verb
  • To cast a spell on (specifically an evil spell), to bewitch. 

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. 

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