SOOTY is a 5 letter word that starts with S.

1. \Soot"y\, a. [Compar {Sootier}; superl. {Sootiest}.] [AS.
   s?tig. See {Soot}.]
   1. Of or pertaining to soot; producing soot; soiled by soot.
      ``Fire of sooty coal.'' --Milton.
   
   2. Having a dark brown or black color like soot; fuliginous;
      dusky; dark. ``The grisly legions that troop under the
      sooty flag of Acheron.'' --Milton.
   
   {Sooty albatross} (Zo["o]l.), an albatross ({Ph[oe]betria
      fuliginosa}) found chiefly in the Pacific Ocean; -- called
      also {nellie}.
   
   {Sooty tern} (Zo["o]l.), a tern ({Sterna fuliginosa}) found
      chiefly in tropical seas.
   
   

2. \Soot"y\, v. t.
   To black or foul with soot. [R.]
   
         Sootied with noisome smoke.              --Chapman.