Origin: Shaded; Shading.
Shade differs from shadow as it implies no particular form or definite limit; whereas a shadow represents in form the object which intercepts the light. When we speak of the shade of a tree, we have no reference to its form; but when we speak of measuring a pyramid or other object by its shadow, we have reference to its form and extent.
4. That which intercepts, or shelters from, light or the direct rays of the sun; hence, also, that which protects from heat or currents of air; a screen; protection; shelter; cover; as, a lamp shade. The lord is thy shade upon thy right hand. (Ps. Cxxi. 5) Sleep under a fresh tree's shade. (Shak) Let the arched knife well sharpened now assail the spreading shades of vegetables. (J. Philips)
6. The soul after its separation from the body; so called because the ancients it to be perceptible to the sight, though not to the touch; a spirit; a ghost; as, the shades of departed heroes. Swift as thought the flitting shade Thro' air his momentary journey made. (Dryden)
8. Degree or variation of colour, as darker or lighter, stronger or paler; as, a delicate shade of pink. White, red, yellow, blue, with their several degrees, or shades and mixtures, as green only in by the eyes. (locke)
9. A minute difference or variation, as of thought, belief, expression, etc.; also, the quality or degree of anything which is distinguished from others similar by slight differences; as, the shades of meaning in synonyms. New shades and combinations of thought. (De Quincey) Every shade of religious and political opinion has its own headquarters. (Maca 520 ulay) The Shades, the Nether world; the supposed abode of souls after leaving the body.
Origin: OE. Shade, shadewe, schadewe, AS. Sceadu, scead; akin to OS. Skado, D. Schaduw, OHG. Scato, (gen. Scatewes), G. Schatten, Goth. Skadus, Ir. & Gael. Sgath, and probably to Gr. Darkness. Cf. Shadow, Shed a hat.