Indonesia
来自Big Physics
wiktionary
(late nineteenth century) Attested circa 1850, [1] composed of Ancient Greek Ἰνδός(Indós) + νῆσος(nêsos, “island”); initially, in competition with Insulinde, of the same meaning, lexically constructed on a Latin basis, or in reference to the East Indies archipelago.
etymonline
Indonesia
"the East Indies," 1850, from Indo- "India" + Greek nēsos "island" (see Chersonese) + -ia. Formerly called Indian Archipelago or East Indies Islands (see Indies). Related: Indonesian "of or from the East Indies" (1850).