<snip> A derivation of the orginal would be nice too, if anybody can hazard one. [Joanna B] My guess would be that it's a (nick)name coined from "trey" -- three on a suit of cards or on a die. [Robin H] <snip> The third born of a litter? Not offered with any confidence; there are also dogs called 'deuce', it would seem. CW _______________________________________________ 'Lasciamo ai padroni lo champagne: noi abbiamo i pomodori' (Let the bosses have the champagne: we've got the tomatoes) - Potere Operaio, New Year 1968