Where does “скоростной” come from?
скоростной (Russian) comes from Russian ско́рость, from Russian -ость, from Proto-Slavic -ostь — Used with adjectival stems to form abstract...
скоростной (Russian): speed, high-speed; fast
Ancestry of “скоростной”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | ско́рость | — |
| 2 | Russian | -ость | -ness, -ity |
| 3 | Proto-Slavic | -ostь | Used with adjectival stems to form abstract... |