discard vs relinquish

discard

verb
  • To throw away, to reject. 

  • To make a discard; to throw out a card. 

  • To dismiss from employment, confidence, or favour; to discharge. 

noun
  • A temporary variable used to receive a value of no importance and unable to be read later. 

  • Anything discarded. 

  • A discarded playing card in a card game. 

relinquish

verb
  • To accept to give up, withdraw etc. 

  • To give up, abandon or retire from something. To trade away. 

  • To let go (free, away), physically release. 

  • To metaphorically surrender, yield control or possession. 

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