ŭtĕrīnus — Lewis & Short
ŭtĕrīnus, a, um, adj.uterus,
I born of the same mother, uterine:
fratres,Cod. Just. 5, 61, 21:
soror,ib. 6, 59, 15; Cod. Th. 9, 42, 9, § 3; Vulg. Gen. 43, 29.