Where does “kierregalaksi” come from?

kierregalaksi (Finnish) comes from Finnish kierre, from Finnish kiertää, from Proto-Finnic keertädäk, from Proto-Finnic keerä, from Proto-Uralic kerä.

Ancestry of “kierregalaksi”, step by step

kierregalaksi traces back through two separate lines of ancestry.

via Finnish kierre

StepLanguageWordMeaning
1Finnishkierrethread; worm; helix; whirl, spiral
2Finnishkiertääto turn, twist, screw, rotate; to roll; to wind,...
3Proto-Finnickeertädäkto turn; to spin thread
4Proto-Finnickeerätwisted
5Proto-Uralickerä—

via Finnish galaksi

StepLanguageWordMeaning
1Finnishgalaksigalaxy
2Swedishgalaxgalaxy; a large collection of stars
3Ancient Greekγαλαξίαςthe Milky Way galaxy; tailor's chalk; dogfish
4Ancient Greekγάλαmilk; milky sap; the Milky Way galaxy
5Proto-Indo-Europeanglakt-—
Every word from Proto-Uralic kerä →Every word from Proto-Finnic keerä →Every word from Proto-Finnic keertädäk →