Old Irish origin
Source-reportedMeaning: “brown” + “battle”
From Old Irish Donnchad (compare Irish Donncha, Scottish Gaelic Donnchadh), from donn (“brown”) + cath (“battle”).
Sources for this account (2)
- Wiktionary: DonnagheyCC-BY-SA-4.0 · retrieved 2026-10-15
- Polish Wiktionary: DonnagheyCC-BY-SA-4.0 · retrieved 2026-10-14

