Lewis Short
(adjective) : purpŭrārĭus, a, um, id..
* Of or belonging to purple, purple: officinae,manufactories of purple,Plin. 35, 6, 27, § 46: taberna,Dig. 32, 1, 89: NEGOTIATOR ARTIS PVRPVRARIAE,Inscr. Orell. 4250.
* Substt.
* ‡ purpŭrārĭus, ĭi, m., a purple-dyer, Inscr. Orell. 4271 and 4272.
* ‡ purpŭrārĭa, ae, f.
* A purpledye house, Inscr. Orell. 2952.
* Plur.: Purpŭrārĭae, ārum, f. (sc. insulae), two islands in the Atlantic, now Madeira and Porto Santo, Juba ap. Plin. 6, 32, 37, § 203.
Charlton T. Lewis, Charles Short, A Latin Dictionary