bargain

Concise Oxford English Dictionary © 2008 Oxford University Press:
bargain/ˈbɑːɡən/

▶noun

• 1 an agreement between two or more people as to what each will do for the other.

• 2 a thing bought or offered for sale for a lower price than normal.

▶verb

• 1 negotiate the terms of a transaction.

• 2 (bargain for/on) be prepared for; expect.

– phrases
drive a hard bargain be uncompromising in making a deal.
into the bargain in addition.

– derivatives
bargainer noun.

– origin ME: from OFr. bargaine (n.), bargaignier (v.); prob. of Gmc origin.