The Collaborative International Dictionary of English v.0.48:
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.