black friar vs devotional

black friar

noun
  • A member of the religious order of the Dominicans. 

devotional

noun
  • A brief religious service. 

  • A text or piece of music or writing to be used for devotion. 

adj
  • Of or pertaining to devotion or worship. 

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