c.1300, "the East" (originally usually meaning what is now called the Middle East), from Old French orient "east" (11c.), from Latin orientem (nominative oriens) "the rising sun, the east, part of the sky where the sun rises," originally "rising" (adj.), present participle of oriri "to rise" (see orchestra). The Orient Express was a train that ran from Paris to Istanbul via Vienna 1883-1961, from the start associated with espionage and intrigue.