procurator vs stand-in

procurator

noun
  • An agent or attorney. 

  • A tax collector. 

  • The governor of a small imperial province. 

  • A legal officer who both investigates and prosecutes crimes, found in some inquisitorial legal systems, particularly communist or formerly communist states – see public procurator 

stand-in

noun
  • A person of similar size and shape to an actor who "stands in" for that actor during the lengthy process of setting up a shot, but who, unlike a double, does not appear in the film. 

  • A substitute. 

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