abend vs choke off

abend

verb
  • To terminate abnormally. 

noun
  • The abnormal termination of a program. 

  • Termination of a process prior to completion. 

choke off

verb
  • To get rid of, cause to come to an end. 

  • To stop a person in the execution of a purpose. 

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