Many a cask of ale and cider is on tap, and many a draught of spiced wine and aqua-vitae has been quaffed.
early 15c., Latin, literally "water of life," an alchemical term for unrefined alcohol. Applied to brandy, whiskey, etc. from 1540s. Cf. whiskey, also French eau-de-vie "spirits, brandy," literally "water of life."