Bar·gain, v. t. [imp. & p. p. Bargained (░); p. pr. & vb. n. Bargaining.] To transfer for a consideration; to barter; to trade; as, to bargain one horse for another.
To bargain away, to dispose of in a bargain; -- usually with a sense of loss or disadvantage; as, to bargain away one's birthright. “The heir . . . had somehow bargained away the estate.”
n : the negotiation of the terms of a transaction or agreement