/ ˈʊəduː; ˈɜːduː; NAmE ˈʊrduː; ˈɜːrduː/ noun
[ U ] the official language of Pakistan, also widely used in India
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WORD ORIGIN
from Persian (zabān-i-)urdū (language of the) camp (because it developed as a lingua franca after the Muslim invasions between the occupying armies and the local people of the region around Delhi), urdū being from Turkic (a large group of Western and Central Asian languages) ordu (royal) camp.