Russian свояк

← Messapic veinam (cognate)

← English accusative (link)

← Old High German swein (cognate)

← Proto-Balto-Slavic *swaynya- (mention)

← Proto-Indo-European *swe- (mention)

← Proto-Indo-European *swo- (mention)

← Proto-Indo-European *se- (mention)

← Lithuanian sváinis (cognate)

← Latvian savs (cognate)