Proto-Slavic *porzdьnъ

→ Belarusian парожні (inherited)

→ Czech prázdný (inherited)

→ Old Church Slavonic праздьнъ (derived)

→ Lower Sorbian prozniny (derived)

→ Lower Sorbian prozny (inherited)

→ Hungarian parázna (derived)

→ Macedonian празен (inherited)

→ Polish próżny (inherited)

→ Romanian praznic (derived)

→ Romanian prăznui (derived)

→ Russian порожний (inherited)

→ Russian праздный (derived)

→ Serbo-Croatian prazan (inherited)

→ Serbo-Croatian празан (inherited)

→ Slovak prázdny (inherited)

→ Slovene prazen (inherited)

→ Silesian prōzny (inherited)

→ Ukrainian порожній (inherited)

→ Old Polish prózny (inherited)