Where does “Berthelsen” come from?

Berthelsen (Danish) comes from Danish -sen, from Danish søn, from Old Danish sun, from Old Norse sonr, from Proto-Germanic sunuz, from Proto-Indo-European *suhnús.

Ancestry of “Berthelsen”, step by step

StepLanguageWordMeaning
1Danish-sen-son; Forms patronymic surnames
2Danishsønson
3Old Danishsunson
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 →