Polish dwa

← Proto-Balto-Slavic *duwō (inherited)

← Proto-Indo-European *dwóh₁ (inherited)

← Polish duo (doublet)

← Proto-Slavic *dъva (inherited)

→ Latvian divi (cognate)

→ Polish duo (doublet)

→ Polish dwieście (mention)

→ Polish dwakroć (suffix)

→ Polish dwoić (suffix)

→ Sanskrit द्व (cognate)