Where does “пятнаццаць” come from?

пятнаццаць (Belarusian) comes from Belarusian пяць, from Old East Slavic пѧть, from Proto-Slavic pętь, from Proto-Indo-European pénkʷe — five.

пятнаццаць (Belarusian): fifteen (15)

Definitions

  1. fifteen (15)

Ancestry of “пятнаццаць”, step by step

пятнаццаць traces back through 3 separate lines of ancestry.

via Belarusian пяць

StepLanguageWordMeaning
1Belarusianпяцьfive
2Old East Slavicпѧтьfive
3Proto-Slavicpętьfive
4Proto-Indo-Europeanpénkʷefive

via Belarusian на

StepLanguageWordMeaning
1Belarusianнаon, onto
2Proto-Slavicnaon; concerning; onto
3Proto-Indo-Europeanh₂en-on, onto

via Belarusian дзе́сяць

StepLanguageWordMeaning
1Belarusianдзе́сяцьten (10)
Every word from Proto-Indo-European pénkʷe →Every word from Proto-Slavic pętь →Every word from Old East Slavic пѧть →