The story
- Proto-Indo-European*s(w)é
- Latinsē-
- Latingrex
- Latingregō
- Latinsēgregō
- Latinsēgregātus
- English todaysegregate
From Latin sēgregātus, perfect passive participle of sēgregō (“to separate”), from sē- (“apart”) + gregō (“to flock or group”), from grex (“flock”). Compare gregarious, aggregate.
Etymology from Wiktionary, CC BY-SA 4.0.