true lover's knot

noun5

1. •
   Any of various knots (for string or the like) having some symmetry.
2. •
   A particular knot of eight crossings.
3. •
   Lines interwoven with many involutions, fancifully held as an emblem of interwoven affection.
4. •
   A particular species of moth (Lycophotia porphyrea).
5. •
   A small plant in the family Melanthiaceae (Paris quadrifolia).