Words that come from Proto-Balto-Slavic “ketwirtas”

38 words across 18 languages descend from Proto-Balto-Slavic ketwirtas — including четверг, štvrtok, четврти, четврток, čtvrtý, četrtek, cztwarty, czwarty.

See the etymology of ketwirtas itself →

Russian (4)

Polish (4)

Serbo-Croatian (4)

Czech (3)

Silesian (3)

Proto-Slavic (3)

Macedonian (2)

Old Polish (2)

Ukrainian (2)

Belarusian (2)

Romanian (2)

Slovak (1)

Slovene (1)

Kashubian (1)

Old East Slavic (1)

Bulgarian (1)

Upper Sorbian (1)

Old Church Slavonic (1)