counteract vs feedforward

counteract

verb
  • To deliberately act in opposition to, to thwart or frustrate 

  • To have a contrary or opposing effect or force on 

noun
  • An action performed in opposition to another action. 

feedforward

verb
  • To respond in advance 

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

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