"a bargain," early 13c., cheffare "buying and selling," also (14c.) cheapfare, probably from Old English ceap "bargain, traffic, gain, sale" (see cheap) + faru "faring, going" (see fare (n.)). In later use, "haggling." The verb is recorded from mid-14c.
权威例句
1. Soames checked his instinctive " Not particular " -- he would not chaffer with this alien.