Where does “tres-” come from?

tres- (Asturian) comes from Latin trāns, from Latin Padus, from Lepontic Bodincus, from Proto-Indo-European bʰudʰmḗn, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

tres- (Asturian): trans-

Definitions

trans-

Ancestry of “tres-”, step by step

Step	Language	Word	Meaning
1	Latin	trāns	—
2	Latin	Padus	—
3	Lepontic	Bodincus	—
4	Proto-Indo-European	bʰudʰmḗn	bottom
5	Proto-Indo-European	dʰewbʰ-	deep
6	Proto-Indo-European	dʰewh₂-	smoke; mist, haze

Every word from Proto-Indo-European dʰewh₂- →

tres- — Etymology, Origin & Word History | Etymology Explorer