Where does “Andreasson” come from?

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

Ancestry of “Andreasson”, step by step

StepLanguageWordMeaning
1SwedishAndreasAndrew
2Swedishsonson; someone's male child
3Old Swedishsonson
4Old Norsesonrson
5Proto-Germanicsunuzson
6Proto-Indo-European*suhnús—
Every word from Proto-Indo-European *suhnús →Every word from Proto-Germanic sunuz →Every word from Old Norse sonr →