Proto-Slavic *mъxъ

→ Czech mech (inherited)

→ Old Church Slavonic мъхъ (inherited)

→ Lower Sorbian mech (inherited)

→ Upper Sorbian moch (inherited)

→ Hungarian moha (derived)

→ Latin muscus (cognate)

→ Macedonian мов (inherited)

→ Polish mech (inherited)

→ Russian мох (inherited)

→ Slovak mach (inherited)

→ Slovene mah (inherited)

→ Ukrainian мох (inherited)

→ Old Armenian մամուռ (cognate)