black friar vs conventual

black friar

noun

  • A member of the religious order of the Dominicans. 

conventual

noun

  • A member of a convent. 

adj

  • Pertaining to a convent or convent life; cloistered, monastic. 

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