天蓝色, 蔚蓝色

Sky \Sky\ (sk[imac]), n.; pl. {Skies} (sk[imac]z). [OE. skie a
cloud, Icel. sk[=y]; akin to Sw. & Dan. sky; cf. AS. sc[=u]a,
sc[=u]wa, shadow, Icel. skuggi; probably from the same root
as E. scum. [root]158. See {Scum}, and cf. {Hide} skin,
{Obscure}.]
1. A cloud. [Obs.]

[A 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. [Obs.]

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 color; 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.

Note: Sky is often used adjectively or in the formation of
self-explaining compounds; as, sky color, skylight,
sky-aspiring, sky-born, sky-pointing, sky-roofed, etc.

{Sky blue}, an azure color.

{Sky scraper} (Naut.), a skysail of a triangular form.
--Totten.

{Under open sky}, out of doors. ``Under open sky adored.''
--Milton.