I / infectōrĭus
adjective

infectōrĭus

fem. infectōria · neut. infectōrium
that serves for dyeing; a dye-house
that serves for dyeing (late Lat.): alumen, Marc. Emp. 4.—Subst.: infectōrĭum, ĭi, n., a dye-house, Gr. βαφεῖον, Gloss. Philox.