Where does “kierreportaat” come from?

kierreportaat (Finnish) comes from Finnish porras, from Proto-Finnic pordas, from Proto-Germanic bordaz, from Proto-Germanic burdą, from Proto-Indo-European bʰers- — top, tip, point.

kierreportaat (Finnish): spiral staircase

Definitions

  1. spiral staircase

Ancestry of “kierreportaat”, step by step

kierreportaat traces back through two separate lines of ancestry.

via Finnish porras

StepLanguageWordMeaning
1Finnishporrasstep, stair
2Proto-Finnicpordasstair, step
3Proto-Germanicbordaz—
4Proto-Germanicburdąboard, plank; table
5Proto-Indo-Europeanbʰers-top, tip, point

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—
Every word from Proto-Indo-European bʰers- →Every word from Proto-Germanic burdą →Every word from Proto-Germanic bordaz →