untied is a form of:

Untie



1.
ស្រាយ
ENGLISH MEANING
verb
1.
(TRANSITIVE) To loosen, as something interlaced or knotted; to disengage the parts of; as, to untie a knot.
2.
(TRANSITIVE) To free from fastening or from restraint; to let loose; to unbind.
3.
(TRANSITIVE) To resolve; to unfold; to clear.
4.
(INTRANSITIVE) To become untied or loosed.