augur vs prefigure

augur

verb
  • To foretell events; to exhibit signs of future events; to indicate a favorable or an unfavorable outcome. 

noun
  • A diviner who foretells events by the behaviour of birds or other animals, or by signs derived from celestial phenomena, or unusual occurrences. 

  • An official who interpreted omens before the start of public events. 

prefigure

verb
  • To predict or foresee. 

  • To show or suggest ahead of time; to represent beforehand (often used in a Biblical context). 

noun
  • That which prefigures or appears to predict; a harbinger. 

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