expectative vs probable

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. 

probable

adj
  • Supporting, or giving ground for, belief, but not demonstrating. 

  • Likely or most likely to be true. 

  • Likely to happen. 

noun
  • A person who is likely to appear or do a certain thing. 

  • Something that is likely. 

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