dying vs terminally ill

dying

adj
  • Approaching death; about to die; moribund. 

  • Declining, terminal, or drawing to an end. 

  • Pertaining to death, or the moments before death. 

noun
  • The process of approaching death; loss of life; death. 

terminally ill

adj
  • Having an incurable condition that will lead to death. 

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