churchman vs ecclesiast

churchman

noun
  • A person (originally a man) of authority in a religious organization; a cleric. 

  • A member or adherent of an established church, especially the Church of England. 

ecclesiast

noun
  • A cleric; someone (such as a priest) who administers a church (ecclesia) or other religious gathering/group. 

  • A member of the Athenian ecclesia (public legislative assembly). 

  • A member of any ecclesia (church or other assembly). 

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