The story
- Proto-Indo-European*per-
- Proto-Italic*peri-
- Latinper-
- Proto-Indo-European*h₂ent-
- Proto-Indo-European*h₂énts?
- Proto-Indo-European*h₂m̥bʰí
- Proto-Italic*amβi-
- Latinambi-
- Proto-Indo-European*h₂elh₂-
- Proto-Italic*alō
- Latin*alō
- Latinambulō
- Latinperambulō
- Latinperambulātus
- Englishperambulate
- English todayperambulator
From perambulate + -or.
Etymology from Wiktionary, CC BY-SA 4.0.