Franciscan vs friar

Franciscan

noun
  • A member of the Order of the Friars Minor. 

  • A monk or nun of related orders such as the Poor Clares. 

adj
  • Of or related to the Franciscans. 

  • Of or related to St Francis of Assisi. 

friar

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

  • An American fish, the silverside. 

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