abbey vs monastery

abbey

noun
  • The church of a monastery. 

  • The office or dominion of an abbot or abbess. 

  • A monastery or society of people, secluded from the world and devoted to religion and celibacy, which is headed by an abbot or abbess; also, the monastic building or buildings. 

  • A residence that was previously an abbatial building. 

monastery

noun
  • A building for housing monks or others who have taken religious vows. 

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