There are some more examples concerning he matter in question.
relent (v) = to moderate or change a position or course of action as a result of pressure: ease off, slacken, soften, weaken, yield. Idioms: givewayground. See strong/weak. To make or become less severe or extreme: moderate, mute, qualify, subdue, tame, temper, tone down
relent (v) = to change your attitude and become less strict or cruel towards someone [= give in]: Synonyms: yield, soften
At last her father relented and came to visit her.
The weather did not relent .
relinquish (v) = to retire from; give up or abandon.
to put aside or desist from (something practiced, professed, or intended)
to cease holding physically; release: relinquish a grip
This verb means letting something go or giving something up.
He relinquished his business interests to his children.
By now Jack was determined to relinquish his night-shift duties.
But they flatly refused to relinquish their grip on power.
As yet, there is only speculation that Charles will relinquish his birthright.