The story
- Proto-Italic*wre-
- Latinre-
- Proto-Indo-European*ser-
- Proto-Indo-European*séreti
- Proto-Italic*serō
- Latinserō
- Latinsera
- Latinreserō, reserātus
- English todayreserate
Borrowed from Latin reserō, reserātus (“I unlock, open”).
Etymology from Wiktionary, CC BY-SA 4.0.