sorcerer vs tagati

sorcerer

noun
  • A magician or wizard, sometimes specifically male. 

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 sorcerer and tagati occurred in a corpus of books? (source: Google Ngram Viewer )