Male first name (English): Trey, three;; the trey = the three; treie = three (Old French); Treje = three (Indo), 'trey' is the English word for the three-in games, such as the side of the cube with 3 eyes , comes as a word from the field of games it from Old French 'treie', the numeral 3, for the ancient Indo-European root 'Treje'