From *pętъ (“fifth”) + *-ъkъ.
*pętъkъ m
singular | dual | plural | |
---|---|---|---|
nominative | *pętъkъ | *pętъka | *pętъci |
genitive | *pętъka | *pętъku | *pętъkъ |
dative | *pętъku | *pętъkoma | *pętъkomъ |
accusative | *pętъkъ | *pętъka | *pętъky |
instrumental | *pętъkъmь, *pętъkomь* | *pętъkoma | *pętъky |
locative | *pętъcě | *pętъku | *pętъcěxъ |
vocative | *pętъče | *pętъka | *pętъci |
* -ъmь in North Slavic, -omь in South Slavic.
Days of the week in Proto-Slavic · *dьne nedě̀ľę̇/tajegodьne (layout · text) | ||||||
---|---|---|---|---|---|---|
*ponedělъkъ *ponedělьnikъ |
*vъtorъkъ *vъtorьnikъ |
*serda | *četvьrtъkъ | *pętъkъ | *sǫbota | *neděľa |