But mainly ...;)
Well, fair enough but if your assumption is correct then Poland must have had the highest percentage of nobles in the entire world. :)
you are wrong, ski, icz is the end wchich show from where the family is, ( what village/ or town they posses)
The Swedish Malmberg, Holmberg, Nykvist, Svensson, Sjögren, etc. all imply someone who came from a specific place or relation to someone. However, only the af specifically signifies a noble name. Magnus af Trystorp would be one example. Many, in fact the majority of other noble names were "regular" names where the person just happened to be a noble. In the Polish language -ski would be the equivalent. From what I understand there are no specifically noble names in Polish.