Where does “fumu” come from?

fumu (Leonese) comes from Latin fūmus, from Proto-Italic fūmos, from Proto-Indo-European dʰuh₂mós, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

fumu (Leonese): smoke

Definitions

smoke

Ancestry of “fumu”, step by step

Step	Language	Word	Meaning
1	Latin	fūmus	smoke, steam, fume
2	Proto-Italic	fūmos	smoke
3	Proto-Indo-European	dʰuh₂mós	smoke
4	Proto-Indo-European	dʰewh₂-	smoke; mist, haze

Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Indo-European dʰuh₂mós →Every word from Proto-Italic fūmos →