Proto-Slavic *obolstь

→ English oblast (derived)

→ Belarusian вобласць (derived)

→ Bulgarian област (inherited)

→ Czech oblast (inherited)

→ Old Church Slavonic область (inherited)

→ Macedonian област (inherited)

→ Russian область (derived)

→ Rusyn область (derived)

→ Serbo-Croatian област (inherited)

→ Slovak oblasť (inherited)

→ Slovene oblast (inherited)

→ Ukrainian область (derived)