/un tuy"/ , v. , untied, untying .
v.t.
1. to loose or unfasten (anything tied); let or set loose by undoing a knot.
2. to undo the string or cords of.
3. to undo, as a cord or a knot; unknot.
4. to free from restraint.
5. to resolve, as perplexities.
v.i.
6. to become untied.
[ bef. 1000; ME untyen, OE untiegan. See UN- 2 , TIE ]