What does "hansom" mean?

Hansom: A light, low, two-wheeled covered carriage with the driver's seat elevated behind, the reins being passed over the top. He hailed a cruising hansom . . . " 'Tis the gondola of London," said Lothair. Beaconsfield. HAN'T; HAIN'T Han't. A contraction of have not, or has not, used in illiterate speech. In the United States the commoner spelling is hain't.