official language of Pakistan, 1796, from Hindustani urdu "camp," from Turkish ordu (source of horde); short for zaban-i-urdu "language of the camp." Compare Dzongkha, a variant of Tibetan and the official language of Bhutan, literally "the language of the fortress." "So named because it grew up since the eleventh century in the camps of the Mohammedan conquerors of India as a means of communication between them and the subject population of central Hindustan." [Century Dictionary]