expiry vs last roundup

expiry

noun
  • Death. 

  • Synonym of expiration date 

  • End; termination; expiration. 

last roundup

noun
  • Death. 

  • A final gathering of people or items; the final event in a series of events involving a group or organization. 

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