feedforward vs forehold

feedforward

verb
  • To respond in advance 

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

forehold

verb
  • To hold or believe (something) beforehand; to assume; to anticipate, to predict. 

noun
  • The forward or front part of the hold of a ship. 

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