Carbonarius, Adiect. vt, Fornax carbonaria. A cole pit.CarbonariÛ negotium exercere. Plin. To sell coles: to play the collyer.
Lewis and Short: Latin dictionary
carbōnārĭus, a, um, adj. [1. carbo], of or relating to charcoal: negotium,
traffic in charcoal
, Aur. Vict. Vir. Ill. 72.—II.Subst.A. carbōnārĭus, i, m., a burner of charcoal, a collier, Plaut. Cas. 2, 8, 2; Inscr. Orell. 4302.—B. carbōnārĭa, ae, f.1. (Sc. fornax.) A furnace for charcoal, Tert. Car. Christ. 6.—2. (Sc. femina.) The Charcoal-Woman, the title of a lost play by Plautus, Fest. p. 30, 27 Müll.