Relinquish one's grasp on (something) to ( someone or something) verb phrase
To unwillingly give up control of something
I relinquished my grasp on the project to John who I don't trust.
She has relinquished her grasp on the company to her son.
To leave, stop, or give up (doing) something before the severe consequences come
To yield to someone or something.
To surrender.
The verb "relinquish" must be conjugated according to its tense.
A legal matter that is very easy to solve
The house owners didn't lock the doors before going out, and that's why they got broken in. This is an open and shut case.