UNKNOT is a playable word

unknot Scrabble® Dictionary

verb
unknotted, unknotting, unknots
to undo a knot in
18 Playable Words can be made from "UNKNOT"
   2-Letter Words (7 found)
   3-Letter Words (6 found)
   4-Letter Words (3 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)