abend vs put out of one's misery

abend

verb
  • To terminate abnormally. 

noun
  • The abnormal termination of a program. 

  • Termination of a process prior to completion. 

put out of one's misery

verb
  • To end or destroy something for the good of the individuals involved in it. 

  • To submit a person or an animal to euthanasia. 

  • To provide somebody information which they have been expecting. 

How often have the words abend and put out of one's misery occurred in a corpus of books? (source: Google Ngram Viewer )