archdeacon vs clergyperson

archdeacon

noun
  • A senior administrative official in a diocese, just under the bishop, often in charge of an archdeaconry. As a title, it can be filled by either a deacon or priest. 

clergyperson

noun
  • An ordained (male or female) Christian minister, a member of the clergy. 

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