The Collaborative International Dictionary of English v.0.48:

Skyey \Sky"ey\, a.
   Like the sky; ethereal; being in the sky. "Skyey regions."
   --Thackeray.
   [1913 Webster]

         Sublime on the towers of my skyey bowers,
         Lightning, my pilot, sits.               --Shelley.
   [1913 Webster]