Where does “Lyon” come from?

Lyon (French) comes from Latin Lugdūnum, from Gaulish Lugudūnon, from Proto-Celtic Lugus — the god {{w|Lugus}}.

Ancestry of “Lyon”, step by step

Step	Language	Word	Meaning
1	Latin	Lugdūnum	—
2	Gaulish	Lugudūnon	—
3	Proto-Celtic	Lugus	the god {{w\|Lugus}}

Lyon — Etymology, Origin & Word History | Etymology Explorer