Nouns

(n)bargain, dealan agreement between parties (usually arrived at after discussion) fixing obligations of each“he made a bargain with the devil”, “he rose to prominence through a series of shady deals”
(n)bargain, buy, stealan advantageous purchase“she got a bargain at the auction”, “the stock was a real buy at that price”

Verbs

(v)dicker, bargainnegotiate the terms of an exchange“We bargained for a beautiful rug in the bazaar”
(v)bargaincome to terms; arrive at an agreement