Where does “трёхлетний” come from?

трёхлетний (Russian) comes from Russian ле́то, from Old East Slavic лѣто, from Proto-Slavic lěto, from Proto-Indo-European leh₁tóm.

трёхлетний (Russian): three-year; three-year-old

Definitions

  1. three-year; three-year-old

Ancestry of “трёхлетний”, step by step

StepLanguageWordMeaning
1Russianле́тоyear; summer, year
2Old East Slavicлѣтоtime
3Proto-Slaviclětosummer; year
4Proto-Indo-Europeanleh₁tóm—
Every word from Proto-Indo-European leh₁tóm →Every word from Proto-Slavic lěto →Every word from Old East Slavic лѣто →
трёхлетний — Etymology, Origin & Word History | Etymology Explorer