Lewis & Short

† hyălus, i, m., = ὕαλος, glass.

  1. I. Lit.: Milesia vellera Carpebant hyali saturo fucata colore, i. e. with glass-green color, Verg. G. 4, 335.
  2. II. Transf., glassgreen color, Prud. στεφ. 12, 53; Aus. Idyll. 10, 418.