con ‧ voke /kənˈvəʊk $ -ˈvoʊk/ BrE AmE verb [transitive] formal
[ Date: 1500-1600 ; Language: Latin ; Origin: convocare , from com- ( ⇨ COM- ) + vocare 'to call' ]
to tell people that they must come together for a formal meeting:
Separate meetings had been convoked by the two opposing factions.