Where does “двудверный” come from?

двудверный (Russian) comes from Russian дверь, from Old Church Slavonic двьрь, from Proto-Slavic dvь̃rь, from Proto-Balto-Slavic dwírs, from Proto-Indo-European dʰwer- — door.

двудверный (Russian): having two doors

Definitions

  1. having two doors

Ancestry of “двудверный”, step by step

StepLanguageWordMeaning
1Russianдверьdoor
2Old Church Slavonicдвьрьdoor, front door, entrance
3Proto-Slavicdvь̃rьdoor
4Proto-Balto-Slavicdwírsdoor
5Proto-Indo-Europeandʰwer-door
Every word from Proto-Indo-European dʰwer- →Every word from Proto-Balto-Slavic dwírs →Every word from Proto-Slavic dvь̃rь →