Where does “abluvião” come from?

abluvião (Portuguese) comes from Latin abluvio, from Latin abluō, from Latin ab-, from Latin āb, from Proto-Germanic *ab, from Proto-Indo-European apó.

abluvião (Portuguese): flood, deluge

Definitions

flood, deluge

Ancestry of “abluvião”, step by step

Step	Language	Word	Meaning
1	Latin	abluvio	erosion
2	Latin	abluō	to wash off, wash away, cleanse, purify
3	Latin	ab-	from, away, away from; off; at a distance
4	Latin	āb	from, away from, out of
5	Proto-Germanic	*ab	—
6	Proto-Indo-European	apó	—

Every word from Proto-Indo-European apó →Every word from Proto-Germanic *ab →Every word from Latin āb →