Where does “Petersson” come from?

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

Ancestry of “Petersson”, step by step

Petersson traces back through two separate lines of ancestry.

via Swedish son

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

via Swedish Peters

StepLanguageWordMeaning
1SwedishPeters—
Every word from Proto-Indo-European *suhnús →