Source : Webster's Revised Unabridged Dictionary (1913)

Truck \Truck\, v. t. [imp. & p. p. {Trucked}; p. pr. & vb. n.
   {trucking}.] [OE. trukken,F. troquer; akin to Sp. & Pg.
   trocar; of uncertain origin.]
   To exchange; to give in exchange; to barter; as, to truck
   knives for gold dust.

         We will begin by supposing the international trade to
         be in form, what it always is in reality, an actual
         trucking of one commodity against another. --J. S.
                                                  Mill.