sorcery vs tagati

sorcery

noun
  • Magical power; the use of witchcraft or magic arts. 

tagati

noun
  • In South African English, a wizard, witch, or a spiteful person who operates in secret to harm others or who uses poisons and familiar spirits to carry out harmful deeds. 

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