PEDDLE is a 6 letter word that starts with P.

1. \Ped"dle\, v. i. [From {Peddler}.]
   1. To travel about with wares for sale; to go from place to
      place, or from house to house, for the purpose of
      retailing goods; as, to peddle without a license.
   
   2. To do a small business; to be busy about trifles; to
      piddle.
   
   

2. \Ped"dle\, v. t. [imp. & p. p. {Peddled}; p. pr. & vb. n.
   {Peddling}.]
   To sell from place to place; to retail by carrying around
   from customer to customer; to hawk; hence, to retail in very
   small quantities; as, to peddle vegetables or tinware.