Old Church Slavonic двьри

← Old Church Slavonic двьрь (link)

← Proto-Indo-European *dʰwer- (derived)

← Proto-Slavic *dvьrь (inherited)

→ Old Irish dorus (cognate)

→ Serbo-Croatian двери (derived)

→ Serbo-Croatian dveri (derived)

→ Tocharian B twere (cognate)