Polish czwarty

← Proto-Slavic *četvьrtъ (mention)

← Old Polish cztwarty (mention)

→ Belarusian чацвёрты (cognate)

→ Czech čtvrtý (cognate)

→ Polish czwartek (suffix)

→ Polish ćwierć (cognate)

→ Polish czwartorzęd (affix)

→ Polish Czwartek (suffix)

→ Polish czwartoklasista (affix)

→ Serbo-Croatian četvrtfinale (cognate)

→ Serbo-Croatian четвртфинале (cognate)