abend vs procrastinate

abend

verb
  • To terminate abnormally. 

noun
  • The abnormal termination of a program. 

  • Termination of a process prior to completion. 

procrastinate

verb
  • To put off; to delay (something). 

  • To delay taking action; to wait until later. 

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