Culdee vs friar

Culdee

noun
  • One of a class of anchorites who lived in various parts of Scotland, Ireland, and Wales. 

friar

noun
  • An American fish, the silverside. 

  • A member of a mendicant Christian order such as the Augustinians, Carmelites (white friars), Franciscans (grey friars) or the Dominicans (black friars). 

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