Where does “Νάρβων” come from?

Νάρβων (Ancient Greek) comes from Latin Narbō, from Ancient Greek Ναρβαῖοι.

Ancestry of “Νάρβων”, step by step

Step	Language	Word	Meaning
1	Latin	Narbō	—
2	Ancient Greek	Ναρβαῖοι	—

Νάρβων — Etymology, Origin & Word History | Etymology Explorer