from the GNU version of the Collaborative International Dictionary of English
- adj. an ethereal substance (not to be confused with the bouquet, or aroma, of wine) found in wine lees, and consisting of a complex mixture of the ethereal salts of several of the higher acids of the acetic acid series. It has an ethereal odor, and it used in flavoring artificial wines and liquors. Called also oil of wine. See Essential oil, under Essential.
Sorry, no etymologies found.