Origin: OE. Skie a cloud, Icel. Sk; akin to Sw. & Dan. Sky; cf. AS. Sca, scwa, shadow, Icel. Skuggi; probably from the same root as E. Scum. See Scum, and cf. Hide skin, Obscure.
1. A cloud. wind that blew so hideously and high, That it ne lefte not a sky In all the welkin long and broad. (Chaucer)
2. Hence, a shadow. She passeth as it were a sky. (Gower)
3. The apparent arch, or vault, of heaven, which in a clear day is of a blue colour; the heavens; the firmament; sometimes in the plural. The Norweyan banners flout the sky. (Shak)
4. The wheather; the climate. Thou wert better in thy grave than to answer with thy uncovered body this extremity of the skies. (Shak)
Sky is often used adjectively or in the formation of self-explaining compounds; as, sky colour, skylight, sky-aspiring, sky-born, sky-pointing, sky-roofed, etc. Sky blue, an azure colour. Sky scraper, a skysail of a triangular form. Under open sky, out of doors. Under open sky adored. .