eb·on·y 
(ĕbə-nē)
(ĕbə-nē)n. pl. eb·on·ies
1. Any of various tropical Asian or African trees of the genus Diospyros.
2. The wood of such a tree, especially the hard black heartwood of D. ebenum or certain other species, used in cabinetwork and inlaying and for piano keys.
3. The hard dark wood of various other trees.
4. The color black; ebon.
adj.
1. Made of or suggesting ebony.
2. Black in color.
[Probably from Middle English hebenyf, ebony wood, from alteration of Late Latin hebeninus, of ebony, from Greek ebeninos, from ebenos, ebony tree, from Egyptian hbny.]