/ ˈblaɪti; NAmE / noun
[ U ] ( BrE ) a name for Britain or England, used especially by soldiers in the First and Second World Wars, and now sometimes used in a humorous way
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WORD ORIGIN
first used by soldiers in the Indian army; Anglo-Indian alteration of Urdu bilāyatī , wilāyatī foreign, European, from Arabic wilāyat , wilāya dominion, district.