Where does “Sevastos” come from?

Sevastos (Romanian) comes from Greek σεβαστός, from Ancient Greek Σεβαστός, from Latin Augustus, from Proto-Indo-European h₂ewg-, from Proto-Indo-European h₂weg-, from Proto-Indo-European h₂ug-.

Ancestry of “Sevastos”, step by step

Step	Language	Word	Meaning
1	Greek	σεβαστός	respected
2	Ancient Greek	Σεβαστός	august, venerable, exalted
3	Latin	Augustus	venerable
4	Proto-Indo-European	h₂ewg-	to increase, to enlarge
5	Proto-Indo-European	h₂weg-	to increase, to enlarge
6	Proto-Indo-European	h₂ug-	—

Every word from Proto-Indo-European h₂ug- →Every word from Proto-Indo-European h₂weg- →Every word from Proto-Indo-European h₂ewg- →