cunning folk vs wiz

cunning folk

noun
  • professional or semi-professional practitioners of magic (who were often charlatans) who were active from at least the 15th up until the early 20th century. 

wiz

noun
  • A person who is exceptionally clever, gifted or skilled in a particular area. 

  • A wizard; an administrator of a multi-user dungeon. 

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