The story
- Proto-Germanic*balkô
- Frankish*balkō
- Medieval Latinbalcō
- Italianbalcone
- English todaybalcony
From Italian balcone (“balcony, floor-length window”), from Old Italian balcone (“scaffold”) from Lombardic *balk, *balko (“beam”), from Proto-Germanic *balkô (“beam”), from Proto-Indo-European *bʰelǵ- (“beam, pile, prop”). Akin to Old High German balco, balcho (“beam”), Old English balca (“beam, ridge”). More at balk.
Words from the same roots
Proto-Germanic*balkô all →
Proto-Indo-European*bʰelǵ- all →
Etymology from Wiktionary, CC BY-SA 4.0.