Source : Webster's Revised Unabridged Dictionary (1913)

Bloncket \Blonc"ket\, Blonket \Blon"ket\, a. [OF. blanquet
   whitish, dim. of blanc white. Cf. {Blanket}.]
   Gray; bluish gray. [Obs.]

         Our bloncket liveries been all too sad.  --Spenser.