B. Hence,
1. Isidis crinis, an unknown plant, Juba ap. Plin. 13, 25, 52, § 142.—
2. Isidis sidus, the planet Venus, Plin. 2, 8, 6, § 37.—
II. Deriv. Īsĭăcus , a, um, adj., = Ἰσιακός, of or belonging to Isis: conjectores, Enn. ap. Cic. Div. 1, 58, 132: “focus,” Ov. P. 1, 1, 52: “Isiacae sacraria lenae,” Juv. 6, 488.—Subst.: Īsĭă-cus , i, m., a priest of Isis, Suet. Dom. 1; Val. Max. 7, 3, 8; Plin. 27, 7, 29, § 53 al.