celebrant vs ecclesiast

celebrant

noun
  • A person who officiates at a religious ceremony, especially a marriage or the Eucharist. 

  • A person who is celebrating something. 

  • A person who conducts formal ceremonies in the community, particularly weddings, baby namings, renewals of wedding vows and funerals. 

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 celebrant and ecclesiast occurred in a corpus of books? (source: Google Ngram Viewer )