Where does “пятиле́тие” come from?

пятиле́тие (Russian) comes from Russian пять, from Old Church Slavonic пѧть, from Proto-Slavic pętь, from Proto-Indo-European pénkʷe — five.

пятиле́тие (Russian): five-year period, half-decade

Definitions

  1. five-year period, half-decade

Ancestry of “пятиле́тие”, step by step

пятиле́тие traces back through two separate lines of ancestry.

via Russian пять

StepLanguageWordMeaning
1Russianпятьfive; second-person singular imperative...
2Old Church Slavonicпѧтьfive
3Proto-Slavicpętьfive
4Proto-Indo-Europeanpénkʷefive

via Russian ле́то

StepLanguageWordMeaning
1Russianле́тоyear; summer, year
2Old East Slavicлѣтоtime
3Proto-Slaviclětosummer; year
4Proto-Indo-Europeanleh₁tóm

Words derived from “пятиле́тие

Every word from Proto-Indo-European pénkʷeEvery word from Proto-Slavic pętьEvery word from Old Church Slavonic пѧть