Proto-Slavic *morzъ

→ English Mross (derived)

→ Belarusian мароз (inherited)

→ Bulgarian мраз (inherited)

→ Old Church Slavonic мразъ (inherited)

→ Lower Sorbian marznuś (mention)

→ Lower Sorbian mroz (inherited)

→ Macedonian мраз (inherited)

→ Polish mróz (inherited)

→ Russian мороз (inherited)

→ Russian мраз (derived)

→ Serbo-Croatian mraz (inherited)

→ Serbo-Croatian мраз (inherited)

→ Slovene mraz (inherited)

→ Albanian mardhë (cognate)

→ Ukrainian мороз (inherited)