accede vs withhold

accede

verb
  • To agree or assent to a proposal or a view; to give way. 

  • To become a party to an agreement or a treaty. 

  • To come to an office, state or dignity; to attain, assume (a position). 

withhold

verb
  • To keep (information, assent etc) to oneself rather than revealing it. 

  • To stay back. 

  • To keep (a physical object that one has obtained) to oneself rather than giving it back to its owner. 

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