τρίαινα

A. trident, three-pronged fish-spear, the badge of Poseidon, Il. 12.27, Od. 4.506, 5.292, A. Pr. 925, E. Fr. 360.47; as a symbol of the empire of the sea, Ar. Eq. 839; τρίαιναν ἐσθλὸς καὶ κυβερνήτης σοφός, i. e. a good fisherman . . , Archil. 45.

II. threepronged fork, Longus 4.40; cf. τριαινόω 11.

III. a constellation rising with Pisces, Teucer in Boll Sphaera 52.

IV. a kind of cautery, Paul.Aeg. 6.48.