Source : Webster's Revised Unabridged Dictionary (1913)

Peddler \Ped"dler\, n. [OE. pedlere, pedlare, also peddare,
   peoddare, fr. OE. ped a basket, of unknown origin.]
   One who peddles; a traveling trader; one who travels about,
   retailing small wares; a hawker. [Written also {pedlar} and
   {pedler}.] ``Some vagabond huckster or peddler.'' --Hakluyt.

Source : WordNet®

peddler
     n 1: someone who travels about selling his wares (as on the
          streets or at carnivals) [syn: {pedlar}, {packman}, {hawker},
           {pitchman}]
     2: an unlicensed dealer in illegal drugs [syn: {pusher}, {drug
        peddler}, {drug dealer}, {drug trafficker}]