The Collaborative International Dictionary of English v.0.48:

interweave \in`ter*weave"\, v. t. [imp. & obs. p. p.
   interwove; p. p. interwoven; p. pr. & vb. n.
   interweaving.]
   [1913 Webster]
   1. To weave together; to intermix or unite in texture or
      construction; to intertwine; as, threads of silk and
      cotton interwoven.
      [1913 Webster]

            Under the hospitable covert nigh
            Of trees thick interwoven.            --Milton.
      [1913 Webster]

   2. To intermingle; to unite intimately; to connect closely;
      as, to interweave truth with falsehood. --Dryden.
      [1913 Webster]

            Words interwove with sighs found out their way.
                                                  --Milton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

interwove \in`ter*wove"\, interwoven \in`ter*wov"en\,
   imp. & p. p. of interweave.
   [1913 Webster]