unhitch
verbUK /ʌnˈhɪtʃ/
US /ʌnˈhɪtʃ/
To unhitch means to take something off a hook or a thing that holds it.
The farmer unhitched the horse from the wagon.
OTHER MEANINGS
2. To set free from a connection or attachment.
They unhitched the trailer and parked it by the lake.
3. To separate or undo something that was joined together.
He unhitched the rope from the post before the storm came.
4. To release an animal from being tied or fastened.
She unhitched the dog from the fence and led it inside.