Proto-Slavic *dьrzъkъ

→ Bulgarian дързък (inherited)

→ Old Church Slavonic дръзновеньѥ (inherited)

→ Macedonian дрзок (inherited)

→ Polish dziarski (mention)

→ Russian дерзкий (inherited)

→ Serbo-Croatian drzak (inherited)

→ Serbo-Croatian дрзак (inherited)

→ Ukrainian дерзкий (inherited)

→ Old Polish darski (inherited)