knock back vs withsay

knock back

verb
  • To reject; to refuse. 

  • To drink an alcoholic beverage swiftly or often. 

  • To stun; to surprise. 

  • To press or knead (dough) so as to remove air bubbles. 

withsay

verb
  • To decline, to refuse to do or accept. 

  • To contradict or deny. 

  • To forbid, to refuse to allow, give, or permit. 

  • To gainsay, to oppose in speech (and by extension writing). 

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