Edward Vernon ("Old Grog") (12 November 1684 – 30 October 1757) was an English naval officer. Vernon was born in Westminster and went to Westminster School. He joined the Royal Navy in 1700 and was promoted to Lieutenant in 1702. After five years as Lieutenant, he was appointed Captain in 1706. His first command was the HMS Rye, part of the fleet of Admiral Sir Cloudesley Shovell. The origin of the name "grog" for rum diluted with water and lemon or lime juice is attributed to Vernon.