The Collaborative International Dictionary of English v.0.48:

Intwine \In*twine"\, v. t. [Cf. Entwine.]
   To twine or twist into, or together; to wreathe; as, a wreath
   of flowers intwined. [Written also entwine.]
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The Collaborative International Dictionary of English v.0.48:

Intwine \In*twine"\, v. i.
   To be or to become intwined.
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The Collaborative International Dictionary of English v.0.48:

Entwine \En*twine"\, v. t. [Pref. en- + twine. Cf. Intwine.]
   To twine, twist, or wreathe together or round. [Written also
   intwine.]
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         Entwined in duskier wreaths her braided locks.
                                                  --Shelley.
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         Thy glorious household stuff did me entwine. --Herbert.
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