frailty vs no-show

frailty

noun
  • The condition quality of being frail, physically, mentally, or morally; weakness of resolution; liability to be deceived. 

  • A fault proceeding from weakness; foible; sin of infirmity. 

no-show

noun
  • An absence; failure to show up or to make a scheduled appearance, especially at a hotel or a place of employment. 

  • A person or group that does not show up. 

verb
  • To fail to show up for something. 

How often have the words frailty and no-show occurred in a corpus of books? (source: Google Ngram Viewer )