curb
Cross references: 1. restrain 1. curb \'k*rb\ n [MF courbe curve, curved piece of wood or iron, fr. courbe curved,] [fr. the fact that it orig. transacted its business on the street] often attrib fr. L curvus 1: a chain or strap on the upper part of the branches of a bit used to rest rain a horse 2: an enclosing frame, border, or edging 3: CHECK, RESTRAINT 4: a raised edge or margin to strengthen or confine 5: an edging built along a street to form part of a gutter 6: a market for trading in securities not listed on a stock exchange 2. curb vi : to control or furnish with a curb
Webster's English Dictionary