her·dic 
(hûrdĭk)
(hûrdĭk)n.
1. A small horse-drawn cab with two wheels, side seats, and an entrance at the back, used in the late 1800s.
2. A four-wheeled carriage of similar construction, used as a public conveyance in the late 1800s.
[After Peter Herdic (1824-1888), American inventor.]