Tokyo

wiktionary

ref

Borrowed from Japanese 東京(Tōkyō, literally “eastern capital”), as opposed to Kyoto in the west, from Middle Chinese 東(tuwng, “east”) + 京(kjæng, “capital”).

etymonline

ref

Tokyo

so named 1868, from Japanese to "east" + kyo "capital;" its earlier name was Edo, literally "estuary."