Peru
来自Big Physics
wiktionary
From Spanish Perú, possibly from the native name Birú, or from the Quechua pelu(“river”).
etymonline
Peru
ancient realm in northwestern South America, later a Spanish viceroyalty, since 1821 an independent republic, from Spanish Peru, said to be from Quechua (Inca) pelu "river." Related: Peruvian.
