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-ski/-ska, -scy/ski, -wicz - Polish surnames help [185]
no, it is not, as far as I know.
Well, this is what my professor told us. -icz ending belongs to Lithuanian and Belorussian surnames, whereas -uk ending is typically Ukrainian. Let's say.. Adam Mickiewicz, for example. Of course, we're talking about contemporary Polish surnames now.
As far as I remember, -icz originates from Kievan Rus, but nowadays, this ending is quite common among Poles of Lithuanian descent. As we know, Belarus and Lithuania had very close ties during the course of history, so the origin of the surname depends on where the ancestors of yours lived and also, where they moved (or were forced to move to).
So yeah, what I mentioned was the contemporary aspect only.