Grog

Grog is a term used for a variety of alcoholic beverages. The word originally referred to rum diluted with water, which British Vice-Admiral Edward Vernon introduced into the naval squadron he commanded in the West Indies on 21 August 1740. Vernon wore a coat of grogram cloth and was nicknamed Old Grogram or Old Grog. The Merriam–Webster Collegiate Dictionary, which agrees with this story of the word's origin, states that the word grog was first used in this sense in 1770, though other sources cite 1749. In modern times, the term grog has had a variety of meanings in a number of different cultures, but is most commonly used in Australia and New Zealand where it is a slang word for alcohol.