cleric vs theologian

cleric

noun
  • A member of the clergy. 

  • A spellcaster class that receives their spells (especially healing) from their deity. 

adj
  • Of or pertaining to the clergy. 

theologian

noun
  • One who studies theology. 

  • In Eastern Orthodox usage, a person who has had direct experience of and unity with God. 

  • In Roman Catholic usage, a theological lecturer attached to a cathedral church. 

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