Word Origin & History
eastO.E. east, from P.Gmc. *aus-to-, *austra- "east, toward the sunrise" (cf. Du. oost, Ger. Ost, O.N. austr "from the east"), from PIE *aus- "dawn" (cf. Skt. ushas "dawn," Gk. aurion "morning," O.Ir. usah, Lith. auszra "dawn," L. aurora "dawn," auster "south"), lit. "to shine." The east is the direction
in which dawn breaks. For shift in sense in L., see
Australia. Meaning "the eastern part of the world" (from Europe) is from c.1300. Cold War use of East for "communist states" first recorded 1951. Natives of eastern Germany and the Baltics were known as easterlings 16c.-18c. The east wind in Biblical Palestine was scorching and destructive (cf. Ezek. xvii.10); in New England it is bleak, wet, unhealthful. East End of London so called from 1846; East Side of Manhattan so called from 1882; East Indies (India and Southeast Asia) so called 1590s to distinguish them from the West Indies.