Proto-Slavic *paǫkъ

→ Belarusian павук (inherited)

→ Bulgarian паяк (cognate)

→ Czech pavouk (inherited)

→ Kashubian pajk (inherited)

→ Kashubian pajik (inherited)

→ Lower Sorbian pawk (inherited)

→ Upper Sorbian pawk (inherited)

→ Macedonian пајак (inherited)

→ Old East Slavic паукъ (inherited)

→ Polish pająk (inherited)

→ Polabian pojąk (inherited)

→ Romanian păianjen (mention)

→ Russian паук (inherited)

→ Serbo-Croatian pauk (inherited)

→ Serbo-Croatian паук (inherited)

→ Slovak pavúk (inherited)

→ Slovene pajek (inherited)

→ Ukrainian павук (inherited)