Origin: before 900; Middle English midwei,Old English midweg;see mid1, way1; def. 3 and 4 after the Midway Plaisance, the main thoroughfare of the World Columbian Exposition, held in Chicago in 1893
O.E. mid-weg "the middle of a way or distance." Meaning "central avenue of a fairground" is first recorded 1893, Amer.Eng., in ref. to the Midway Plaisance of the Worlds Columbian Exposition, held in Chicago.