To execute a trade on behalf of another broker.
To admit defeat, capitulate
Become fully taken over by a certain quality, activity, trait, &c.
To abandon (someone or something)
To relinquish (something)
To stop or quit (an activity, etc.)
To surrender (someone or something)
To lose hope concerning (someone or something)
To go to law; to carry on a lawsuit.
To dispute; to fight over.
To contest in law.