Österbotten (Swedish) comes from Swedish botten, from Old Swedish butn, from Old Norse botn, from Proto-Germanic butmaz, from Proto-Indo-European bʰudʰmḗn, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.
Österbotten (Swedish): Ostrobothnia, Swedish & Finnish province
Definitions
Ostrobothnia, Swedish & Finnish province
Ancestry of “Österbotten”, step by step
Österbotten traces back through two separate lines of ancestry.