DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Blay \Blay\, n. [AS. bl?ge, fr. bl?c, bleak, white; akin to
      Icel. bleikja, OHG. bleicha, G. bleihe. See Bleak, n. & a.]
      (Zool.)
      A fish. See Bleak, n.
      [1913 Webster]