disincarnate vs unsubstantial

disincarnate

verb
  • To divest of body; to make immaterial. 

  • To die, in context of subsequently existing outside the body (for example, as a soul or spirit). 

adj
  • lacking a physical form. 

unsubstantial

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