accede vs succumb

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). 

succumb

verb
  • To give up, or give in. 

  • To yield to an overpowering force or overwhelming desire. 

  • To die. 

  • To overwhelm or bring down. 

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