Etimoloji
Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Indo-European *(h₁)witoros Proto-Balto-Slavic *witaras Proto-Slavic *vъtorъ Old Polish wtóry Polish wtóry Inherited from Old Polish wtóry, from Proto-Slavic *vъtorъ. Displaced by drugi.