untie
un.tie \-'ti-\ vt 1: to free from something that ties, fastens, or restrains : UNBINDM 2a: to disengage the knotted parts of 2b: DISENTANGLE, RESOLVE : to become loosened or unbound
Webster's English Dictionary Webster's English Dictionaryun.tie \-'ti-\ vt 1: to free from something that ties, fastens, or restrains : UNBINDM 2a: to disengage the knotted parts of 2b: DISENTANGLE, RESOLVE : to become loosened or unbound