trey

from WordNet (r) 3.0 (2006)

trey
    n 1: the cardinal number that is the sum of one and one and one
         [syn: {three}, {3}, {III}, {trio}, {threesome}, {tierce},
         {leash}, {troika}, {triad}, {trine}, {trinity}, {ternary},
         {ternion}, {triplet}, {tercet}, {terzetto}, {trey}, {deuce-
         ace}]
    2: one of four playing cards in a deck having three pips [syn:
       {trey}, {three}]

from The Collaborative International Dictionary of English v.0.48

Trey \Trey\, n. [OF. treis three, F. trois, L. tres. See
   {Three}, and cf. {Tray-trip}.]
   Three, at cards, dice, or dominoes; a card, die, or domino of
   three spots or pips.
   [1913 Webster]

         Seven is my chance and thine is cinq and trey.
                                                  --Chaucer.
   [1913 Webster]

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