augury vs prefiguration

augury

noun
  • An omen or prediction; a foreboding; a prophecy. 

  • A divination based on the appearance and behaviour of animals. 

  • An event that is experienced as indicating important things to come. 

prefiguration

noun
  • A vague representation or suggestion of something before it has happened or been accomplished. 

  • Something that prefigures. 

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