The story
- Proto-Germanic*burdą
- Proto-West Germanic*bord
- Old Englishbord
- Middle Englishbord
- Englishboard
- Proto-Indo-European*Hrew-?
- Proto-Indo-European*(H)rewH-
- Proto-Germanic*rūmą
- Proto-West Germanic*rūm
- Old Englishrūm
- Middle Englishroum
- Englishroom
- English todayboardroom
Etymology from Wiktionary, CC BY-SA 4.0.