abend vs incompletion

abend

noun
  • Termination of a process prior to completion. 

  • The abnormal termination of a program. 

verb
  • To terminate abnormally. 

incompletion

noun
  • Something which is not completed. 

  • A forward pass which is not caught inbounds by the intended receiver. 

  • The state or quality of not being complete. 

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