Where does “Magnuson” come from?

Magnuson (English) comes from Swedish Magnusson, from Swedish son, from Old Swedish son, from Old Norse sonr, from Proto-Germanic sunuz, from Proto-Indo-European *suhnús.

Ancestry of “Magnuson”, step by step

Magnuson traces back through two separate lines of ancestry.

via Swedish Magnusson

StepLanguageWordMeaning
1SwedishMagnusson—
2Swedishsonson; someone's male child
3Old Swedishsonson
4Old Norsesonrson
5Proto-Germanicsunuzson
6Proto-Indo-European*suhnús—

via Danish Magnussen

StepLanguageWordMeaning
1DanishMagnussen—
2DanishMagnus—
3Old NorseMagnús—
4Latinmagnuslarge, big; great; important
5Proto-Indo-Europeanmeǵh₂-big, great; great; big, stour, great
Every word from Proto-Indo-European *suhnús →Every word from Proto-Germanic sunuz →Every word from Old Norse sonr →