The Collaborative International Dictionary of English v.0.48:

Tangle \Tan"gle\, v. t. [imp. & p. p. Tangled; p. pr. & vb. n.
   Tangling.] [A frequentative fr. tang seaweed; hence, to
   twist like seaweed. See Tang seaweed, and cf. Tangle, n.]
   1. To unite or knit together confusedly; to interweave or
      interlock, as threads, so as to make it difficult to
      unravel the knot; to entangle; to ravel.
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   2. To involve; to insnare; to entrap; as, to be tangled in
      lies. "Tangled in amorous nets." --Milton.
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            When my simple weakness strays,
            Tangled in forbidden ways.            --Crashaw.
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