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yield someone or something up (to someone)
to give someone or something up to someone. He had to yield his daughter up to Claire. The judge required that Tom yield up his daughter to his ex-wife. Finally, he yielded up the money.
To sacrifice or concede something: The inhabitants of the city yielded it up to the invaders without a fight. I sometimes dream of yielding up the comfort of modern society to live in a cabin in the woods. The boxer held the heavyweight title for three years and then yielded it up to a young contender.