v. Ποσίδειος.

s. LGPN

η, ον, Ion. for Ποσιδεῖος (v. infr.), Π. ἄλσος the grove sacred to Poseidon, Il. 2.506, h.Ap. 230; written Ποσείδιον ἄλσος in Str. 8.3.20; but the Att. form is Ποσιδεῖος, S. Fr. 506 (anap.). Dor. Ποσιδάϊος [α], ὁ (sc. μήν), a month at Epidaurus, IG4²(1).103.35; Hellenistic Ποσιδεῖος CIG 6850 (incert. loc.). Ποσιδήϊον, τό, Ion. for Ποσιδεῖον (which is found in Inscr.Délos 372 A 158 (iii/ii BC)), temple of Poseidon, Od. 6.266; written Ποσείδιον in Paus. 2.34.9. Ποσιδεῖα, τά, festival of Poseidon, IG 11(2).203 A 57, 287 A 89 (Delos, iii BC), Inscr.Délos 372 A 114 (iii/ii BC); written Ποσιδέα, IG1². 190.8.