feretory vs rectory

feretory

noun
  • An area of a church where relics are kept. 

  • A receptacle that houses relics of saints. 

rectory

noun
  • The residence of Roman Catholic priest(s) associated with a parish church. 

  • The residence of an Anglican rector. 

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