Old Irish origin
Source-reportedMeaning: “one”
From Old Irish Oíngus, from oín (“one”), from Proto-Celtic *oinos, from Proto-Indo-European *óynos (“single, one”). The etymology of the second element is disputed; most likely it is gus (“strength, vigour”), from Proto-Celtic *gustus, or it may be from Proto-Celtic *guseti (“choose”).
Sources for this account (3)
- Wiktionary: AengusCC-BY-SA-4.0 · retrieved 2026-10-15
- Greek Wiktionary: AengusCC-BY-SA-4.0 · retrieved 2026-10-15
- French Wiktionary: AengusCC-BY-SA-4.0 · retrieved 2026-10-14
