Where does “п'ятдесятиріччя” come from?

п'ятдесятиріччя (Ukrainian) comes from Ukrainian десять, from Proto-Slavic desętь, from Proto-Balto-Slavic *déśimt, from Proto-Indo-European déḱm̥t — ten.

п'ятдесятиріччя (Ukrainian): fifty-year period

Definitions

  1. fifty-year period

Ancestry of “п'ятдесятиріччя”, step by step

п'ятдесятиріччя traces back through 3 separate lines of ancestry.

via Ukrainian десять

StepLanguageWordMeaning
1Ukrainianдесятьten
2Proto-Slavicdesętьten
3Proto-Balto-Slavic*déśimtten
4Proto-Indo-Europeandéḱm̥tten

via Ukrainian п'ять

StepLanguageWordMeaning
1Ukrainianп'ятьfive
2Old East Slavicпѧтьfive
3Proto-Slavicpętьfive
4Proto-Indo-Europeanpénkʷefive

via Ukrainian рік

StepLanguageWordMeaning
1Ukrainianрікyear time it takes for the Earth to complete one revolution of the Sun
2Old East Slavicрокъ—
3Proto-Slavicrokъtime, term; year
4Proto-Slavicreťito say
Every word from Proto-Indo-European déḱm̥t →Every word from Proto-Balto-Slavic *déśimt →Every word from Proto-Slavic desętь →