Where does “три́дцать” come from?
три́дцать (Russian) comes from Russian три, from Macedonian трие, from Proto-Slavic trьje, from Proto-Balto-Slavic tríjes, from Proto-Indo-European *tréyes.
Ancestry of “три́дцать”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | три | three; second-person singular imperative... |
| 2 | Macedonian | трие | to rub |
| 3 | Proto-Slavic | trьje | three |
| 4 | Proto-Balto-Slavic | tríjes | three |
| 5 | Proto-Indo-European | *tréyes | — |
Words derived from “три́дцать”