clergywoman vs parson

clergywoman

noun
  • An ordained (female) Christian minister; a female member of the clergy. 

  • A woman belonging to a clergyman's family. 

parson

noun
  • A Protestant minister. 

  • An Anglican cleric having full legal control of a parish under ecclesiastical law; a rector. 

  • A Roman Catholic priest of an independent parish church. 

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