Interlacing arches

from The Collaborative International Dictionary of English v.0.48
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.
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         Severed into stripes
         That interlaced each other.              --Cowper.
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         The epic way is everywhere interlaced with dialogue.
                                                  --Dryden.
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   {Interlacing arches} (Arch.), arches, usually circular, so
      constructed that their archivolts intersect and seem to be
      interlaced.
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