Where does “nagypéntekek” come from?

nagypéntekek (Hungarian) comes from Hungarian nagypéntek, from Hungarian Péntek, from Proto-Slavic pętъkъ, from Proto-Slavic pętъ, from Proto-Balto-Slavic penktas, from Proto-Hellenic penkʷtos, from Proto-Indo-European pénkʷe — five.

Ancestry of “nagypéntekek”, step by step

StepLanguageWordMeaning
1HungariannagypéntekGood Friday
2HungarianPéntekFriday the companion of Robinson Crusoe in Daniel Defoe's novel
3Proto-SlavicpętъkъFriday
4Proto-Slavicpętъfifth
5Proto-Balto-Slavicpenktasfifth
6Proto-Hellenicpenkʷtos—
7Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European pénkʷe →Every word from Proto-Hellenic penkʷtos →Every word from Proto-Balto-Slavic penktas →