Where does “Eriksen” come from?

Eriksen (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 “Eriksen”, step by step

Step	Language	Word	Meaning
1	Danish	-sen	-son; Forms patronymic surnames
2	Danish	søn	son
3	Old Danish	sun	son
4	Old Norse	sonr	son
5	Proto-Germanic	sunuz	son
6	Proto-Indo-European	*suhnús	—

Every word from Proto-Indo-European *suhnús →Every word from Proto-Germanic sunuz →Every word from Old Norse sonr →