Source : Webster's Revised Unabridged Dictionary (1913)

Interlace \In`ter*lace"\, v. t. & i. [imp. & p. p. {Interlaced};
   p. pr. & vb. n. {Interlacing}.] [OE. entrelacen, F.
   entrelacer. See {Inter-}, and {Lace}.]
   To unite, as by lacing together; to insert or interpose one
   thing within another; to intertwine; to interweave.

         Severed into stripes That interlaced each other.
                                                  --Cowper.

         The epic way is every where interlaced with dialogue.
                                                  --Dryden.

   {Interlacing arches} (Arch.), arches, usually circular, so
      constructed that their archivolts intersect and seem to be
      interlaced.