The Collaborative International Dictionary of English v.0.48:

Convenable \Con*ven"a*ble\, a.
   Capable of being convened or assembled.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Convenable \Con"ve*na*ble\, a. [F. convenable, fr. convenir. See
   Convene.]
   Consistent; accordant; suitable; proper; as, convenable
   remedies. [Obs.]
   [1913 Webster]

         With his wod his work is convenable.     --Spenser.
   [1913 Webster]