Where does “magpadusa” come from?

magpadusa (Bikol Central) comes from Latin Padusa, from Latin Padus, from Lepontic Bodincus, from Proto-Indo-European bʰudʰmḗn, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Ancestry of “magpadusa”, step by step

Step	Language	Word	Meaning
1	Latin	Padusa	One of the mouths of the river Padus
2	Latin	Padus	the River Po
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- →Every word from Proto-Indo-European dʰewbʰ- →Every word from Proto-Indo-European bʰudʰmḗn →