Source : Webster's Revised Unabridged Dictionary (1913)

Smithy \Smith"y\ (-[y^]), n. [AS. smi[eth][eth]e, fr. smi[eth];
   akin to D. smidse, smids, OHG. smitta, G. schmiede, Icel.
   smi[eth]ja. See {Smith}, n.]
   The workshop of a smith, esp. a blacksmith; a smithery; a
   stithy. [Written also {smiddy}.]

         Under a spreading chestnut tree The village smithy
         stands.                                  --Longfellow.

Source : WordNet®

smithy
     n : a workplace where metal is worked by heating and hammering
         [syn: {forge}]