Romanian surname suffix

[Dardanos]

Is the romanian suffix on surnames -scu, of slavic origin ski, or it developed separately?

[dviz]

Is the romanian suffix on surnames -scu, of slavic origin ski, or it developed separately?

On the surface, they don't seem to be related. Escu is of Romance origin, as in Francis -> Francesco.

However, it is possible that "ski" has a Bulgarian Vlach origin, and spread to other Slavs together with the Old Church Slavonic.

The meaning of "escu" and "ski" is certainly the same ("of that origin"). For instance, the Bulgarian name Dobrudzhanski simply means "from Dobruja".

[aherne]

They have the same origin as the -sk in Dansk, Svensk... Come from the Aryan language probably

[Dardanos]

I think it comes from a common indo-European root and developed separately, because poles and russians also have it, so i doubt the vlachs spread it there

[dviz]

I think it comes from a common indo-European root and developed separately, because poles and russians also have it, so i doubt the vlachs spread it there

It may very well be. But people underestimate the reverse migration - that of Balkanites towards North and East, and their influence there.

[Sarmale]

-escu, the most common suffix, certainly derives from the suffix -esc in Romanian, which basically means -ish or -esque, and that was inherited from Latin -iscus. The 'u' at the end was added as it is from the definitive form, minus the final -l which stopped being pronounced. Yes, it is true that this Latin -iscus may have been borrowed from Germanic or Greek, and then goes further back to the same Indo-European root as Slavic -sky, or German -isch. It became a patronymic surname suffix because it basically means "derived from, related to, or like... such and such (usually a name)". Like Marin > Marinescu, Lupu > Lupescu. You can see other equivalents of this suffix in Italian Francesco or Spanish Francisco.

As for -schi, that is different, and probably from some Slavic language (-ski or -sky). Various surnames from neighboring countries have entered over time and become assimilated to Romanian orthography, like -ici (in most cases from Serbo-Croatian -ic), although there are exceptions. There is also -ciuc and -enco and -eac from Ukrainian I believe, and -ov from mostly Bulgarian. I wouldn't say any of these are super common, but you do find them.

-escu is definitely the most common and is Romanian in origin. You also get -ar or -ariu for occupational surnames like Olaru, Rotariu, Fieraru, Funaru, Pescaru, etc. and that comes from latin -arius.

Another common suffix is -eanu, or -anu which has to do with place names, names derived from locations were families were from.

There are others as well, and a bunch of random names with no suffixes either.