Lewis & Short

vĕhes, is, f. [veho], a carriage loaded with any thing, a cart-load, wagon-load (post-Aug.).

  1. I. Lit.: faeni large onusta, Plin. 36, 15, 24, § 108: stercoris, Col. 11, 2, 86: fimi, Plin. 18, 23, 53, § 193: qui lapis etiam nunc ostenditur magnitudine vehis, so big as to be a cart-load, id. 2, 58, 59, § 149.
  2. II. Transf., as a measure, a load, Col. 11, 2, 13.