feedforward vs foretell

feedforward

verb
  • To respond in advance 

noun
  • An anticipatory response to expected changes in the environment of a system 

foretell

verb
  • To predict; to tell (the future) before it occurs; to prophesy. 

  • To tell (a person) of the future. 

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