Is it ensure, insure, or assure?
1886, from Indo-, comb. form of Greek Indos "India" + China. Name proposed early 19c. by Scottish poet and orientalist John Leyden, who lived and worked in India from 1803 till his death at 35 in 1811.
Region in Southeast Asia, including Burma (Myanmar), Cambodia, Laos, Malaysia, Thailand, and Vietnam.
Note: The French colonies of Vietnam, Laos, and Cambodia were organized as French Indochina.