Lewis & Short

carpentārĭus, a, um, adj. [carpentum],

  1. I. of or pertaining to a wagon or chariot: fabricae, Plin. 16, 8, 13, § 34: artifex, a wagon- or carriage-maker, Lampr. Alex. Sev. 52; cf. fabri, Dig. 50, 6, 6: vehiculu m = carpentum, Treb. XXX. Tyrann. 29.
  2. II. Subst.
    1. A. carpentārĭus, ii, m., a carriage-driver, coachman, Cod. Th. 8, 5, 31.
    2. B. carpentārĭa, ae, f. (sc. fabrica), a wagon- or carriage-maker’s workshop, Firm. 2, 10.