Source : Webster's Revised Unabridged Dictionary (1913)

Inlay \In*lay"\, v. t. [imp. & p. p. {Inlaied}; p. pr. & vb. n.
   {Inlaying}.]
   To lay within; hence, to insert, as pieces of pearl, iviry,
   choice woods, or the like, in a groundwork of some other
   material; to form an ornamental surface; to diversify or
   adorn with insertions.

         Look,how the floor of heaven Is thick inlaid with
         patines of bright gold.                  --Shak.

         But these things are . . . borrowed by the monks to
         inlay their story.                       --Milton.

Inlay \In"lay`\, n.
   Matter or pieces of wood, ivory, etc., inlaid, or prepared
   for inlaying; that which is inserted or inlaid for ornament
   or variety.

         Crocus and hyacinth with rich inlay Broidered the
         ground.                                  --Milton.

         The sloping of the moonlit sward Was damask work, and
         deep inlay Of braided blooms.            --Tennyson.

Source : WordNet®

inlay
     n 1: (dentistry) a filling consisting of a solid substance (as
          gold or porcelain) fitted to a cavity in a tooth and
          cemented into place
     2: a decoration made by fitting pieces of wood into prepared
        slots in a surface
     v : decorate the surface of by inserting wood, stone, and metal
     [also: {inlaid}]