abend vs upend

abend

verb
  • To terminate abnormally. 

noun
  • The abnormal termination of a program. 

  • Termination of a process prior to completion. 

upend

verb
  • To end up; to set on end. 

  • To tip or turn over. 

  • To destroy, invalidate, overthrow, or defeat. 

  • To affect or upset drastically. 

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