Lewis Short
sandix | sandyx (noun F) : (), ĭcis (long, Prop. 2, 25 (3, 20), 45;
* Short,Grat. Cyn. 86), f., = σάνδυξ (σάνδιξ), vermilion or a color like vermilion, Plin. 35, 6, 12, § 30; 35, 6, 23, § 40; 35, 6, 26, § 45; Verg. E. 4, 45; Prop. l. l.; Grat. l. l.; Vop. Aur. 29.
Charlton T. Lewis, Charles Short, A Latin Dictionary