σῶρυ

A. ferrous sulphate, melanterite: nom. σῶρι Dsc. 5.102 (but σῶρυ as cited by Gal. and Orib.); the gen. is σώρεως in Dsc. l.c., Hippiatr. 70, 96; soreos in Cels. 6.9.5; soreos (v.l. sorios, soryos) in Plin. HN 34.117.