Proto-Slavic *prǫtъ

→ Bulgarian прът (inherited)

→ Czech prut (inherited)

→ Old Church Slavonic прѫтъ (inherited)

→ Lower Sorbian pšut (inherited)

→ Upper Sorbian prut (inherited)

→ Polish pręt (inherited)

→ Polabian prǫt (inherited)

→ Romanian prunc (derived)

→ Russian прут (inherited)

→ Serbo-Croatian prut (inherited)

→ Serbo-Croatian прут (inherited)