Where does “ruostevapaa” come from?
ruostevapaa (Finnish) comes from Finnish vapaa, from Finnish vapada, from Old East Slavic свободь, from Proto-Slavic svoboda, from Proto-Slavic -oda.
ruostevapaa (Finnish): rust-free
Ancestry of “ruostevapaa”, step by step
ruostevapaa traces back through two separate lines of ancestry.
via Finnish vapaa
| Step | Language | Word | Meaning |
|---|
| 1 | Finnish | vapaa | free; free, off; spare, free |
| 2 | Finnish | vapada | — |
| 3 | Old East Slavic | свободь | free |
| 4 | Proto-Slavic | svoboda | freedom |
| 5 | Proto-Slavic | -oda | — |
via Finnish ruoste
| Step | Language | Word | Meaning |
|---|
| 1 | Finnish | ruoste | rust; rusty; inessive case is sometimes better... |
| 2 | Proto-Finnic | roostek | rust |
| 3 | Proto-Germanic | rustaz | rust |
| 4 | Proto-Indo-European | rudʰso- | red |
| 5 | Proto-Indo-European | h₁rewdʰ- | red |