Source : Webster's Revised Unabridged Dictionary (1913)

Vend \Vend\, v. t. [imp. & p. p. {Vended}; p. pr. & vb. n.
   {Vending}.] [F. vendre, L. vendere, from venum dare; venus
   sale + dare to give. See 2d {Venal}, {Date}, time.]
   To transfer to another person for a pecuniary equivalent; to
   make an object of trade; to dispose of by sale; to sell; as,
   to vend goods; to vend vegetables.

   Note: Vend differs from barter. We vend for money; we barter
         for commodities. Vend is used chiefly of wares,
         merchandise, or other small articles, not of lands and
         tenements.

Source : WordNet®

vending
     n : the act of selling goods for a living [syn: {peddling}, {hawking},
          {vendition}]