Black Monk vs Cluniac

Black Monk

noun

  • A Benedictine monk, one of the Order of Saint Benedict. 

Cluniac

noun

  • A monk of the reformed branch of the Benedictine order, founded in 910 at Cluny (or Clugny) in France. 

adj

  • Relating to a reformed Benedictine monastic order founded at Cluny in eastern France. 

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