The Collaborative International Dictionary of English v.0.48:

Gleamy \Gleam"y\, a.
   Darting beams of light; casting light in rays; flashing;
   coruscating.
   [1913 Webster]

         In brazed arms, that cast a gleamy ray,
         Swift through the town the warrior bends his way.
                                                  --Pope.
   [1913 Webster]