Also kirb-stone. One of the stones forming a curb, esp. at the edge of a side-path; hence, the stone edge of a side-path.
18067. J. Beresford, Miseries Hum. Life (1826), XVIII. iii. 132. The two side-spaces from the wall to the kirb-stone.
1850. Kingsley, Alt. Locke, v. You goes and lies on the kerb-stone.
1862. Ansted, Channel Isl., I. iv. (ed. 2), 66. Black Guernsey granite for macadamised paving and curb stones.
b. attrib., as curb-stone broker (U.S.), a broker, not a member of the stock exchange, who transacts business in the streets.
1860. in Bartlett, Dict. Amer.
1886. Pall Mall Gaz., 28 May, 14/1. Both of these men are kerbstone brokers.