Source : Webster's Revised Unabridged Dictionary (1913)

Bottony \Bot"ton*y\, Botton'e \Bot"to*n['e]\, a. [F.
   boutonn['e], fr. boutonner to bud, button.] (Her.)
   Having a bud or button, or a kind of trefoil, at the end;
   furnished with knobs or buttons.

   {Cross bottony} (Her.), a cross having each arm terminating
      in three rounded lobes, forming a sort of trefoil.