abend vs exterminate

abend

verb
  • To terminate abnormally. 

noun
  • The abnormal termination of a program. 

  • Termination of a process prior to completion. 

exterminate

verb
  • To bring a definite end to; finish completely. 

  • To kill all of (a population of pests or undesirables), usually intentionally. 

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