polo: [19] In Balti, a Tibetan language of northern Kashmir, polo means ‘ball’. English travellers in Kashmir in the 1840s observed a game being played on horseback which involved trying to knock a wooden polo into a goal using a longhandled mallet. The English sahibs lost no time in taking the game up themselves, and by 1871 it was being played back home in England, under the name ‘polo’. [polo etymology, polo origin, 英语词源]