Source : Webster's Revised Unabridged Dictionary (1913)

Sutler \Sut"ler\, n. [D. zoetelaar, OD. soetelaar, a small
   trader, especially in camps, fr. soetelen to undertake low
   offices; cf. G. sudeln to do dirty work, to sully, soil, E.
   suds.]
   A person who follows an army, and sells to the troops
   provisions, liquors, and the like.

Source : WordNet®

sutler
     n : a supplier of victuals or supplies to an army [syn: {victualer},
          {victualler}, {provisioner}]