An allusion to Admiral Edward Vernon (nicknamed "Old Grog" after the grogram coat he habitually wore), who in 1740 ordered his sailors' rum to be watered down.
Also claimed is:
From Catalan, groc (yellow), the colour of the low-quality alcohol.
- Rhymes: -ɒɡ
- (original meaning) An alcoholic beverage made with rum and water, especially that once issued to sailors of the Royal Navy.
- (Australia, New Zealand) Any alcoholic beverage.
- An alcoholic beverage made with hot water or tea, sugar and rum, sometimes also with lemon or lime juice and spices, particularly cinnamon.
- A type of pre-fired clay that has been ground and screened to a specific particle size.
- (ground clay): firesand