'untie' originates from Old English, specifically the word 'untīgan,' where 'un-' meant 'not' and 'tīgan' meant 'to tie.'

'untīgan' changed from the Old English word 'untīgan' and eventually became the modern English word 'untie'.

Initially, it meant 'to not tie,' but over time it evolved into its current meaning of 'to loosen or release something that is tied.'