"Drive" means whipping. Since ancient times, people in China have trained horses as "driving". When they started training the pony, they shouted "drive" and whipped him, and the horse formed a conditioned reflex in his mind. As soon as they heard "hurry", they thought that the whip was going to be pulled down and ran quickly. In the north, there are also people who drive wagons and shout "deer". Koreans drive ox carts and shout "clothing"! It is a simplified sound of "beating cloth" (meaning "beating").