Source : Webster's Revised Unabridged Dictionary (1913)

Chafing \Chaf"ing\, n. [See {Chafe}, v. t.]
   The act of rubbing, or wearing by friction; making by
   rubbing.

   {Chafing dish}, a dish or vessel for cooking on the table, or
      for keeping food warm, either by coals, by a lamp, or by
      hot water; a portable grate for coals.

   {Chafing gear} (Naut.), any material used to protect sails,
      rigging, or the like, at points where they are exposed to
      friction.

Source : WordNet®

chafing dish
     n : a metal pan over a heater; used to cook or to keep things
         warm at the table