The story
- Proto-Indo-European*peth₂-
- Proto-Indo-European*pet-
- Proto-Hellenic*pétalos
- Ancient Greekπέταλον (pétalon)
- English todaypetal
Learned borrowing from Ancient Greek πέταλον (pétalon), from πέταλος (pétalos, “broad, flat”), from Proto-Hellenic *pétalos, from Proto-Indo-European *peth₂- (“to spread out”), whence Latin pandō and Proto-Germanic *faþmaz (“embrace”) (English fathom).
Words from the same roots
Ancient Greekπέταλον all →
Proto-Hellenic*pétalos all →
Proto-Indo-European*peth₂- all →
Etymology from Wiktionary, CC BY-SA 4.0.