convocation (n.) Look up convocation at Dictionary.com
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 "with, together" (see com-) + vocare "to call," from vox "voice" (from PIE root *wekw- "to speak"). Related: Convocational.