Comment by lnxg33k1

I am not an historian but it seems so, I’ve found in the past few minutes two sources that attribute Voi to romans, its in italian but sure it can be translated, going to paste the original links unaltered

https://www.elisamotterle.com/galateo-del-tu-del-lei-e-del-v...

https://www.treccani.it/magazine/atlante/cultura/Diamoci_del...

Beware the treccani is the most used/influential encyclopaedia in italy, so I’d tend to say that i trust them a lot

https://en.m.wikipedia.org/wiki/Treccani