Source : Webster's Revised Unabridged Dictionary (1913)

Truelove \True"love`\, n.
   1. One really beloved.

   2. (Bot.) A plant. See {Paris}.

   3. An unexplained word occurring in Chaucer, meaning,
      perhaps, an aromatic sweetmeat for sweetening the breath.
      --T. R. Lounsbury.

            Under his tongue a truelove he bore.  --Chaucer.

   {Truelove knot}, a complicated, involved knot that does not
      readily untie; the emblem of interwoven affection or
      engagement; -- called also {true-lover's knot}.

Source : WordNet®

truelove knot
     n : a knot for tying the ends of two lines together [syn: {fisherman's
         knot}, {true lover's knot}]