Carthusian vs Cistercian

Carthusian

adj
  • Of, or relating to this order. 

noun
  • A member of a Christian contemplative order of monks founded by Bruno of Cologne (St Bruno) in 1084. 

  • A pupil of Charterhouse School (founded in a Carthusian monastery) 

Cistercian

adj
  • Of, pertaining to or characteristic of the Cistercian Order and its members. 

noun
  • A member of a monastic order which follows the Benedictine rule and emphasizes silent contemplative prayer. 

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