horoscopy vs prophecy

horoscopy

noun
  • The casting of horoscopes. 

  • The aspect of the stars at the time of a person's birth. 

prophecy

noun
  • A prediction, especially one made by a prophet or under divine inspiration. 

  • The public interpretation of Scripture. 

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