Where does “ruuvikierre” come from?
ruuvikierre (Finnish) comes from Finnish kierre, from Finnish kiertää, from Proto-Finnic keertädäk, from Proto-Finnic keerä, from Proto-Uralic kerä.
ruuvikierre (Finnish): thread; helix
Ancestry of “ruuvikierre”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Finnish | kierre | thread; worm; helix; whirl, spiral |
| 2 | Finnish | kiertää | to turn, twist, screw, rotate; to roll; to wind,... |
| 3 | Proto-Finnic | keertädäk | to turn; to spin thread |
| 4 | Proto-Finnic | keerä | twisted |
| 5 | Proto-Uralic | kerä | — |