convocation (n.)

late 14c., convocacioun, "assembly of persons; the calling or holding of a meeting, assembling by summons," from Old French convocation and directly from Latin convocationem (nominative convocatio) "a convoking, calling, or assembling together," noun of action from past-participle stem of convocare "to call together," from assimilated form of com "with, together" (see con-) + vocare "to call," a verbal derivative of vox "voice" (from PIE root *wekw- "to speak"). Especially "an assembly of the clergy of the Church of England." Related: Convocational.