Ebony

Ebony is a dense black wood, most commonly yielded by several species in the genus Diospyros, but ebony may also refer to other heavy, black (or dark colored) woods from unrelated species. Ebony is dense enough to sink in water. Its fine texture, and very smooth finish when polished, make it valuable as an ornamental wood. The word "ebony" derives from the Ancient Egyptian hbny, via the Ancient Greek ἔβενος (évenos), by way of Latin and Middle English.