tra·vois 
(trə-voi, trăvoi′)
(trə-voi, trăvoi′)n. pl. tra·vois (trə-voiz, trăvoiz′)
A frame slung between trailing poles and pulled by a dog or horse, formerly used by Plains Indians as a conveyance for goods and belongings.
[Canadian French, alteration of obsolete travoy, from travail, cart-shaft, from French, frame for restraining horses, alteration of Late Latin tripālium, device with three stakes, probably from Latin tripālis, having three stakes; see TRAVAIL.]