A / astĕrĭa
noun

astĕrĭa

gen. astĕriae · gender feminine · decl. 1st
a precious stone; cat's-eye
a precious stone, perh. cat's-eye, Plin. 37, 9, 47, § 131.—Called in Isid. Orig. 16, 10, 3. astĕ-rītes; in Mart. Cap. 1, p. 19, astrītes.