Alcoholic hot drink, which is usually prepared from rum, sugar and hot water. Instead of rum, however, arrack, brandy, red wine or whisky are also used. There are also cold-prepared versions, such as the Trader Vic Grog, which became popular in the 1960s. According to legend, the name goes back to the British Vice Admiral Edward Vernon (1684-1757). From 1740 onwards, he had the drinking water, which spoiled quickly on long sea voyages, mixed with rum in a ratio of 4:1. Vernon usually wore a warm cloak made of grogram (tarlatan), a coarse fabric of silk and wool. That is why he was nicknamed "Old Grog". In fact, however, rum diluted with water was called grogg in the Caribbean as early as the 17th century, and the taprooms were called grogg shoppe. The expression "groggy" (groggy, staggering) derives from the excessive consumption of grog. See a listing of similar alcoholics under wine-based drinks.