So it's not actually correctly used here? ('an Ur-anything' - e.g. 'an earliest example' as above - would never make sense for one thing?) I don't understand th

So it's not actually correctly used here? ('an Ur-anything' - e.g. 'an earliest example' as above - would never make sense for one thing?) I don't understand the intended meaning that's different from just 'example' here.