The story
- Proto-Indo-European*per-der.?
- Proto-Indo-European*pér
- Proto-Indo-European*pró
- Ancient Greekπρό (pró)
- Ancient Greekπρῶτος (prôtos)
- Ancient Greekπρωτο- (prōto-)
- Englishproto-
- Proto-Germanic*burdą
- Proto-West Germanic*bord
- Old Englishbord
- Middle Englishbord
- Englishboard
- English todayprotoboard
Etymology from Wiktionary, CC BY-SA 4.0.