Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Qenya 

núte

noun. bond, knot

A noun in The Etymologies of the 1930s glossed “bond, knot” under the root ᴹ√NUT “tie, bind” (Ety/NUT).