Could it be the other way round and back-looking doesn't really mean 'looking behind you'? Could 'back' just mean 'further away'? If you move a box further dow

Could it be the other way round and back-looking doesn't really mean 'looking behind you'? Could 'back' just mean 'further away'? If you move a box further down a storage room, you also move it 'further back', don't you? If you bring something back, you move it from where you are to where it belongs. "Back up!" means "move away!". Your back is not just behind you but further away from your front.