What is "dray cart"

Dray \Dray\, n. [AS. dr[ae]ge a dragnet, fr. dragan. ????. See Draw, and cf. 2d Drag, 1st Dredge.]

1. A strong low cart or carriage used for heavy burdens.
   --Addison.

2. A kind of sledge or sled.
   --Halliwell.

   Dray cart, a dray.

   Dray horse, a heavy, strong horse used in drawing a dray.