Gurkha

the British derivative of Gorkha evolved from the name Gorkha, which originally was applied to the soldiers of that region. The Gurkha soldiers of Nepal, who became famous for their service in the British and Indian armies in the nineteenth and twentieth centuries, principally were composed of members of the Magar, Gurung, Limbu, and Rai tribes, and were not a single ethnic group, tribe, clan, or caste.

Source: Library of Congress