Where does “Hadriānus” come from?

Hadriānus (Latin) comes from Latin Hadria, from Etruscan 𐌇𐌀𐌕𐌓𐌉𐌀.

Ancestry of “Hadriānus”, step by step

Step	Language	Word	Meaning
1	Latin	Hadria	a city in Picenum, site of modern {{w\|Atri,...
2	Etruscan	𐌇𐌀𐌕𐌓𐌉𐌀	—

Hadriānus — Etymology, Origin & Word History | Etymology Explorer