A.of a rock, “σκιή” Hes.Op.589 ; living on or among the rocks, “Σκύλλη” Od.12.231 ; “ὄρνις” A.Fr.304.3 ; Νύμφαι π. rock-Nymphs, E.El.805 ; “ἠχώ” Com.Adesp.669 ; τὰ π. τῶν ἰχθυδίων rock-fish, Theopomp.Com.62.3, cf. Sotad.Com.1.22 ; πετραῖα, as a class of marine animals, opp. πελάγια, αἰγιαλώδη, Arist.HA488b7, cf. 598a11 ; growing on or among rocks, “συκῆ” Archil.19.
2. rocky, “ἀγκάλη” A.Pr. 1019; τάφος π. S.El.151 (lyr.); π. δειράς, λέπας, χθών, ἄντρα, etc., Id.Aj. 697 (lyr.), E.HF120(lyr.), Cyc.382 (s.v.l.), IA1082 (lyr.), etc.; “χωρία” Arist.HA570b26.
II. Πετραῖος, epith. of Poseidon in Thessaly, as he who clave the rocks of Tempe, and drained Thessaly, Pi.P.4.138.