The Collaborative International Dictionary of English v.0.48:

Provender \Prov"en*der\, n. [OE. provende, F. provende,
   provisions, provender, fr. LL. praebenda (prae and pro being
   confused), a daily allowance of provisions, a prebend. See
   Prebend.]
   1. Dry food for domestic animals, as hay, straw, corn, oats,
      or a mixture of ground grain; feed. "Hay or other
      provender." --Mortimer.
      [1913 Webster]

            Good provender laboring horses would have. --Tusser.
      [1913 Webster]

   2. Food or provisions. [R or Obs.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

provender
    n 1: food for domestic livestock [syn: feed, provender]
    2: a stock or supply of foods [syn: commissariat,
       provisions, provender, viands, victuals]

Moby Thesaurus II by Grady Ward, 1.0:

79 Moby Thesaurus words for "provender":
   aliment, barley, bird seed, board, bran, bread, bread and butter,
   canned foods, cat food, cheer, chicken feed, chop, chow,
   comestibles, commissariat, commissary, corn, creature comfort,
   cuisine, daily bread, dehydrated foods, dog food, eatables, eatage,
   eats, edibles, ensilage, fare, fast food, feast, feed, fodder,
   food, food and drink, food supply, foodstuff, foodstuffs, forage,
   fresh foods, frozen foods, grain, groceries, grocery, grub, hay,
   health food, ingesta, junk food, kitchen stuff, larder, mash, meal,
   meat, merchandise, nourishment, nurture, oats, pasturage, pasture,
   pet food, provision, provisions, rations, scratch, scratch feed,
   silage, slops, spread, stores, straw, supplies, sustenance, swill,
   table, tucker, viands, victuals, vittles, wheat