Where does “десятилетка” come from?

десятилетка (Russian) comes from Russian десятиле́тие, from Russian де́сять, from Old Church Slavonic десѧть, from Proto-Slavic desętь, from Proto-Balto-Slavic *déśimt, from Proto-Indo-European déḱm̥t — ten.

десятилетка (Russian): ten-year secondary school

Definitions

  1. ten-year secondary school

Ancestry of “десятилетка”, step by step

StepLanguageWordMeaning
1Russianдесятиле́тиеten-year period, decade
2Russianде́сятьten
3Old Church Slavonicдесѧтьten
4Proto-Slavicdesętьten
5Proto-Balto-Slavic*déśimtten
6Proto-Indo-Europeandéḱm̥tten
Every word from Proto-Indo-European déḱm̥t →Every word from Proto-Balto-Slavic *déśimt →Every word from Proto-Slavic desętь →