Source : Webster's Revised Unabridged Dictionary (1913)

Winy \Win"y\, a.
   Having the taste or qualities of wine; vinous; as, grapes of
   a winy taste. --Dampier.

Source : WordNet®

winy
     adj : having the taste of wine; "a rich winy taste" [syn: {winey}]
     [also: {winiest}, {winier}]