friar vs padre

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. 

padre

noun
  • A Roman Catholic or Anglican priest. 

  • A military clergyman. 

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