Where does “Tromsø” come from?

Tromsø (Norwegian Bokmål) comes from Old Norse Trums, 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 “Tromsø”, step by step

StepLanguageWordMeaning
1Old NorseTrums
2Old Norsestraumra stream, a current, a race, a river; the tide
3Proto-Germanicstraumazstream, current, river
4Proto-Indo-Europeansrowmosriver
5Proto-Indo-Europeansrew-to flow, stream
6Proto-Indo-Europeanser-to flow; to guard; to bind, to tie together

Words derived from “Tromsø

Every word from Proto-Indo-European ser-Every word from Proto-Indo-European srew-Every word from Proto-Indo-European srowmos
Tromsø — Etymology, Origin & Word History | Etymology Explorer