the GNU version of the Collaborative International Dictionary of English
n. A compound distilled spirit made in Ireland and Scotland; whisky.
n. A liquor compounded of brandy, or other strong spirit, raisins, cinnamon and other spices.
The Century Dictionary and Cyclopedia
n. Distilled spirit made by the Celtic people of the British Islands, originally from barley. In this sense the term is still used in Scotland for malt whisky.
Word Usage
"Some authorities consider that the word is derived from the first part of the term usquebaugh; others suppose it to be derived from the name of a place, the Basque provinces, where some such compound was concocted in the fourteenth century."