Where does “Sjöström” come from?

Sjöström (Swedish) comes from Swedish ström, from Old Swedish strömber, from Old Norse straumr, from Proto-Germanic straumaz, from Proto-Indo-European srowmos, from Proto-Indo-European srew-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

Ancestry of “Sjöström”, step by step

Sjöström traces back through two separate lines of ancestry.

via Swedish ström

StepLanguageWordMeaning
1Swedishströmcurrent, flow; the part of a fluid that moves...
2Old Swedishströmber
3Old Norsestraumra stream, a current, a race, a river; the tide
4Proto-Germanicstraumazstream, current, river
5Proto-Indo-Europeansrowmosriver
6Proto-Indo-Europeansrew-to flow, stream
7Proto-Indo-Europeanser-to flow; to guard; to bind, to tie together

via Swedish sjö

StepLanguageWordMeaning
1Swedishsjöa lake, small sea
2Old Norsesærthe sea, ocean; second/third-person singular...
3Old Norsesikoneself
4Proto-GermanicsikAlternative form of *sek
5Proto-Germanicsīkątrickling water; a dribble; a slow brook; a...
6Proto-Indo-Europeanseykʷ-to moisten; to filter
7Proto-Indo-Europeansey-to be wet; dribble; run; to stretch one's arm;...
Every word from Proto-Indo-European ser-Every word from Proto-Indo-European srew-Every word from Proto-Indo-European srowmos