predate vs presage

predate

verb
  • To exist or to occur before something else; to antedate. 

  • To prey upon something. 

  • To designate a date earlier than the actual one; to move a date, appointment, event, or period of time to an earlier point (contrast "postdate".) 

noun
  • A publication, such as a newspaper or magazine, that is issued with a printed date later than the date of issue. 

presage

verb
  • To have a presentiment of; to feel beforehand; to foreknow. 

  • To make a prediction. 

  • To predict or foretell something. 

noun
  • A warning of a future event; an omen. 

  • An intuition of a future event; a presentiment. 

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