Where does “sobre” come from?

sobre (Portuguese) comes from Old Portuguese sobre, from Latin super, from Latin eks-uper, from Proto-Indo-European upéri, from Proto-Indo-European upér, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

sobre (Portuguese): on; atop; on top of; over; above; about;...

Definitions

on; atop; on top of; over; above; about;...

Ancestry of “sobre”, step by step

Step	Language	Word	Meaning
1	Old Portuguese	sobre	—
2	Latin	super	"accusative" above, on the top of, upon;...
3	Latin	eks-uper	—
4	Proto-Indo-European	upéri	alternative reconstruction of *upér
5	Proto-Indo-European	upér	above; over
6	Proto-Indo-European	upó	under, below
7	Proto-Indo-European	h₃ewp-	—

Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Proto-Indo-European upér →