convocation (n.)youdaoicibaDictYouDict[convocation 词源字典]
late 14c., "assembly of persons," from Old French convocation and directly from Latin convocationem (nominative convocatio), noun of action from past participle stem of convocare "to call together," from com- "together" (see com-) + vocare "to call," from vox "voice" (see voice (n.)). Related: Convocational.[convocation etymology, convocation origin, 英语词源]