abend vs abortion

abend

noun
  • Termination of a process prior to completion. 

  • The abnormal termination of a program. 

verb
  • To terminate abnormally. 

abortion

noun
  • The cessation of an illness or disease at a very early stage. 

  • Failure or abandonment of a project, promise, goal etc. 

  • The expulsion from the womb of a foetus or embryo before it is fully developed, with loss of the foetus; either naturally as a spontaneous abortion (now usually called a miscarriage), or deliberately as an induced abortion. 

  • Arrest of development of any organ, so that it remains an imperfect formation or is absorbed. 

  • A misshapen person or thing; a monstrosity. 

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