Where does “четырёхлетие” come from?

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

четырёхлетие (Russian): four-year period

Definitions

  1. four-year period

Ancestry of “четырёхлетие”, 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 →
четырёхлетие — Etymology, Origin & Word History | Etymology Explorer