I.mostly in pl. feathers, Od., Hdt., etc.; in sg. a feather, Ar.
2.= πτέρυξ, a bird's wing, in pl. wings, Hom., Aesch.; Παλλάδος ὑπὸ πτεροῖς ὄντας, metaph. from chickens under the hen's wings, Aesch.: —τῷ πτερὰ γίγνετο he got as it were wings, i. e. spirit, courage, Il.
3.the wings of a bat (v. πτίλον II), Hdt.
II.any winged creature, as the Sphinx, Eur.; a beetle, Ar.
III.anything like wings: as
1.a ship's wings, i. e. oars (cf. πτερόω), ἐρετμά, τά τε πτερὰ νηυσὶ πέλονται Od.; νηὸς πτερά Hes., Eur.:— hence birds are said πτεροῖς ἐρέσσειν, Eur.
3.a feathered arrow, Eur.
5.in Architecture, of the rows of columns along the sides of Greek temples, v. ἄπτερος.