swift-winged, the sails
swift-winged, ἴρηξ Il. 13.62: metaph. of ships (πτερά being the sails), A. Supp. 734.
II the long quill-feathers in a wing
ὠκύπτερα, τά, the long quill-feathers in a wing, Ar. Av. 803, Stratt. 27, A.R. 2.1255, Babr. 99(100).4, Plu. CG 1.