Source : Webster's Revised Unabridged Dictionary (1913)

Blay \Blay\, n. [AS. bl?ge, fr. bl?c, bleak, white; akin to
   Icel. bleikja, OHG. bleicha, G. bleihe. See {Bleak}, n. & a.]
   (Zo["o]l.)
   A fish. See {Bleak}, n.