Where does “пятніца” come from?

пятніца (Belarusian) comes from Proto-Slavic pętъkъ, from Proto-Slavic pętъ, from Proto-Balto-Slavic penktas, from Proto-Hellenic penkʷtos, from Proto-Indo-European pénkʷe — five.

пятніца (Belarusian): Friday

Definitions

  1. Friday

Ancestry of “пятніца”, step by step

StepLanguageWordMeaning
1Proto-SlavicpętъkъFriday
2Proto-Slavicpętъfifth
3Proto-Balto-Slavicpenktasfifth
4Proto-Hellenicpenkʷtos—
5Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European pénkʷe →Every word from Proto-Hellenic penkʷtos →Every word from Proto-Balto-Slavic penktas →