jade 1 
(jād)
(jād)n.
1. Either of two distinct minerals, nephrite and jadeite, that are generally pale green or white and are used mainly as gemstones or in carving.
2. A carving made of jade.
3. Jade green.
[French (le) jade, (the) jade, alteration of (l')ejade, from Spanish (piedra de) ijada, flank (stone) (from the belief that it cured renal colic), from Vulgar Latin *īliāta, from Latin īlia, pl. of īlium, flank.]
jade adj.