Proto-Indo-European *laks-

→ Belarusian ласось (derived)

→ Czech losos (derived)

→ Danish laks (inherited)

→ Lower Sorbian łosos (inherited)

→ Upper Sorbian łosos (inherited)

→ Norwegian Bokmål laks (inherited)

→ Norwegian Nynorsk laks (inherited)

→ Elfdalian laks (inherited)

→ Polish łosoś (mention)

→ Russian лосось (derived)

→ Yakut лосось (derived)

→ Serbo-Croatian losos (derived)

→ Serbo-Croatian лосос (derived)

→ Slovak losos (derived)

→ Slovene losos (derived)

→ Ukrainian лосось (derived)

→ Yiddish לאַקס (derived)