Merriam-Webster Collegiate Dictionary - relinquish

 transitive verb  Etymology: Middle English relinquisshen, from Anglo-French relinquiss-, stem of relinquir, from Latin relinquere to leave behind, from re- + linquere to leave — more at loan  Date: 15th century  1. to withdraw or retreat from ; leave behind  2. give up ~ a title  3.  a. to stop holding physically ; release slowly ~ed his grip on the bar  b. to give over possession or control of ; yield few leaders willingly ~ power  • ~ment noun Synonyms:  ~, yield, resign, surrender, abandon, waive mean to give up completely. ~ usually does not imply strong feeling but may suggest some regret, reluctance, or weakness ~ed her crown. yield implies concession or compliance or submission to force the troops yielded ground grudgingly. resign emphasizes voluntary ~ment or sacrifice without struggle resigned her position. surrender implies a giving up after a struggle to retain or resist surrendered their claims. abandon stresses finality and completeness in giving up abandoned all hope. waive implies conceding or forgoing with little or no compulsion waived the right to a trial by jury.