>>I was well aware of the "son of" meaning of "Mac" and "Mc". I believe there are many in other languages, like "Von" in German names, "Van" in Dutch, the "itch" or "off" sound in so many eastern European and Russian names (e.g. Ivanovich - not sure of the spelling, Romanov).
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>I hoped one of our Russian members would jump in... until then, there's one thing to explain: the first last name (!) in Russian classic three-part names is the patronym, i.e. name after father. So Fyodor Mihailovich Dostoyevskiy is Theodor son-of-Mihail Dostoyevskiy. If he had a sister, her middle-last-name would be Mihailovna.

As it was explained to me, my name should have been Alan Nikolaivich Popov after my father who is supposed to be Nikolai Nikolaivich Popov. At least I think that's the way I was told, but it's possible I'm misremembering. In the final analysis though, my father was called Nicholas Popow (mostly he was just Nick), and me, Alan Ivan .... My mother never went by Popova (or even Popowa), and my sister is Adele Francis ...; my brother Leslie Richard ... So the chain was rent asunder some time ago.

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>Slavic people generally don't have the middle name - and if you see someone with a middle letter, that's from, or instead of, the patronym. It's really rarely used in Serbia; mostly to distinguish two famous guys with the same name, like Branko Radichevich (XIX century romantic poet) and Branko V. Radichevich (XX century writer).
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>>Not sure about "ski" either. I think the "sov" as in "Borislav Borrisov" may mean similar too.
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>-ski is a suffix to form adjective from nouns, or at least one of such suffixes. Akin to -ian: Skandinavija (Scandinavia), skandinavski (Scandinavian). I explained the -ov, it's equivalent to -'s. I guess one of Borislav's ancestors was a Boris.