https://en.wiktionary.org/wiki/Reconstruction:Proto-Indo-Eur...
Compare Ancient Greek [w]oikos, and all the various ves, vas, wieś, which can be found all over Eastern Europe.
So it was a job, but one you apparently got by being born in the right place
It’s well known, to the point of near-cliche, that the word “Viking” didn’t refer to a nationality or ethnicity. It meant something akin to “raider”. The ethnic group is usually referred to as the Norse, at least until they start differentiating into the modern nationalities of Danish, Swedish, Norwegian, Icelandic, and Faroese.
The actual finding here seems to be the discovery of the remains of some Viking raiders who weren’t ethnically Norse. Fair enough. There are also examples of Norse populations assimilating into other cultures, such as the Normans and Rus. Likewise, the traditionally Norse Varangian Guard accepted many Anglo-Saxon warriors whose lords didn’t survive the Norman conquest. So it’s not too surprising that someone of non-Nordic descent might be accepted into a Viking warband.
> And comparing DNA and archaeology at individual sites suggests that for some in the Viking bands, "Viking" was a job description, not a matter of heredity.
The Roman Empire at times extended all the way from England to the Persian Gulf. It included various Celtic people, North Africans, people from the Balkans, Turkic people and people from the Middle East. At no point did these people become ethnically homogenous but they all very much Romanized.
The British Empire spanned the globe.
In more modern times the Austro-Hungarian Empire included a dozen or more ethnic groups and languages.
Would we describe being Roman, a Briton or an Austro-Hungarian as a "job"? I don't think so.