To fold something back; to fold down.
To cause to reverse direction and retrace one's steps.
To return to a previous state of being.
To reverse direction and retrace one's steps.
To prevent or refuse to allow passage or progress.
To adjust to a previous setting.
To tip or turn over.
To destroy, invalidate, overthrow, or defeat.
To end up; to set on end.
To affect or upset drastically.