Where does “чэппиэр” come from?

чэппиэр (Yakut) comes from Russian четверг, from Old East Slavic четвьртъкъ, from Proto-Slavic četvьrtъkъ, from Proto-Slavic četvьrtъ, from Proto-Balto-Slavic ketwirtas, from Proto-Indo-European *kʷetwr̥tós — fourth.

чэппиэр (Yakut): Thursday

Definitions

  1. Thursday

Ancestry of “чэппиэр”, step by step

StepLanguageWordMeaning
1RussianчетвергThursday
2Old East Slavicчетвьртъкъ
3Proto-SlavicčetvьrtъkъThursday
4Proto-Slavicčetvьrtъfourth
5Proto-Balto-Slavicketwirtasfourth
6Proto-Indo-European*kʷetwr̥tósfourth
Every word from Proto-Indo-European *kʷetwr̥tósEvery word from Proto-Balto-Slavic ketwirtasEvery word from Proto-Slavic četvьrtъ