Book of Common Prayer vs euchologion

Book of Common Prayer

name
  • The liturgy of the Church of England, first compiled by Thomas Cranmer in 1549 after the (Act of Uniformity). 

euchologion

noun
  • A book of prayers or religious ritual. 

How often have the words Book of Common Prayer and euchologion occurred in a corpus of books? (source: Google Ngram Viewer )