expiring vs going

expiring

adj
  • Ending, terminating, dying. 

going

adj
  • Likely to continue; viable. 

  • Current, prevailing. 

  • Available. 

verb
  • Attending or visiting (a stated event, place, etc.) habitually or regularly. 

noun
  • Conditions for advancing in any way. 

  • The horizontal distance between the front of one step in a flight of stairs and the front of the next. 

  • The whereabouts (of something). 

  • The suitability of ground for riding, walking etc. 

  • Course of life; behaviour; doings; ways. 

  • Progress. 

  • A departure. 

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