The story
- Proto-Indo-European*per-der.?
- Proto-Indo-European*pér
- Proto-Indo-European*pró
- Ancient Greekπρό (pró)
- Ancient Greekπρότερος (próteros)
- English todayprotero-
From Ancient Greek πρότερος (próteros, “anterior”).
Etymology from Wiktionary, CC BY-SA 4.0.