abend vs curtains

abend

noun
  • Termination of a process prior to completion. 

  • The abnormal termination of a program. 

verb
  • To terminate abnormally. 

curtains

noun
  • An end or death. 

  • A ring of clear liquid, forming into drops, near the top of a glass of fortified wine; the result of differential evaporation of alcohol and subsequent changes in surface tension; an example of the Marangoni effect. 

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