Myanmar Rohingya are an ETHNIC group native to Northern Arakan or Rakhaing
Rooinga (Muslims), Natives of Arracan
"The Moguls know this country by the name of Rakhang, and the Mohammedans who have been long settled in this country call themselves Rooinga, natives of Arracan."
Henry G. Bell (1852) An Account of the Burman Empire, Calcultta. p. 66.