[mass noun]the common language of the Greeks from the close of the classical period to the Byzantine era 柯因内语(古典时期结束到拜占庭时代的希腊共通语) ■[count noun]a common language shared by various peoples; a lingua franca 共通语;混合语
语源
late 19th cent.: from Greek koinē (dialektos) 'common (language')