expectative vs parturient

expectative

adj
  • Of or pertaining to an expectation. 

  • Of or pertaining to the reversion of a benefice. 

noun
  • The anticipatory grant of an ecclesiastical benefice, not vacant at the moment but which will become so, regularly, on the death of its present incumbent. 

parturient

adj
  • Of, related to, or caused by childbirth 

  • Facilitating labour. 

  • In labour, about to give birth, or having recently given birth. 

  • About to create a new product, or float a new idea. 

noun
  • A substance that facilitates labour. 

  • One who is in labour, who is about to give birth, or who has recently given birth. 

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