Where does “Sebastian” come from?

Sebastian (Romanian) comes from Italian Sebastiano, from Latin Sebastianus, from Latin Sebastus, from Ancient Greek Σεβαστός, from Latin Augustus, from Proto-Indo-European h₂ewg-, from Proto-Indo-European h₂weg-, from Proto-Indo-European h₂ug-.

Ancestry of “Sebastian”, step by step

StepLanguageWordMeaning
1ItalianSebastiano
2LatinSebastianus
3LatinSebastus
4Ancient GreekΣεβαστόςaugust, venerable, exalted
5LatinAugustusvenerable
6Proto-Indo-Europeanh₂ewg-to increase, to enlarge
7Proto-Indo-Europeanh₂weg-to increase, to enlarge
8Proto-Indo-Europeanh₂ug-
Every word from Proto-Indo-European h₂ug-