Proto-Slavic *ogňь

→ Belarusian агонь (inherited)

→ Bulgarian огън (inherited)

→ Czech oheň (inherited)

→ Kashubian òdżin (inherited)

→ Old Church Slavonic огнь (inherited)

→ Lower Sorbian wogeń (inherited)

→ Upper Sorbian woheń (inherited)

→ Latvian uguns (cognate)

→ Macedonian оган (inherited)

→ Macedonian огин (inherited)

→ Macedonian огон (inherited)

→ Polish ogień (inherited)

→ Polabian viďėn (inherited)

→ Russian огонь (derived)

→ Rusyn огень (inherited)

→ Serbo-Croatian огањ (inherited)

→ Serbo-Croatian oganj (inherited)

→ Slovak oheň (inherited)

→ Slovene ogenj (inherited)

→ Silesian ôgyń (inherited)