Source : Webster's Revised Unabridged Dictionary (1913)

Outfitter \Out"fit`ter\, n.
   One who furnishes outfits for a voyage, a journey, or a
   business.

Source : WordNet®

outfitter
     n 1: someone who sells men's clothes
     2: a shop that provides equipment for some specific purpose;
        "an outfitter provided everything needed for the safari"