expiry vs expiry date

expiry

noun
  • Synonym of expiration date 

  • End; termination; expiration. 

  • Death. 

expiry date

noun
  • The date on which something runs out or expires and becomes out of date, in many cases needing renewal. 

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