re ‧ lin ‧ quish /rɪˈlɪŋkwɪʃ/ BrE AmE verb [transitive]
[ Date: 1400-1500 ; Language: Old French ; Origin: relinquir , from Latin relinquere 'to leave behind' , from linquere 'to leave' ]
formal to let someone else have your position, power, or rights, especially unwillingly SYN give up :
No one wants to relinquish power once they have it.
relinquish something to somebody
Stultz relinquished control to his subordinate.