The story
- Irish · derived fromMac Giolla Ghuala“son of the gluttonous lad”
- English todayGilhooly
Reduced Anglicized form of Irish Mac Giolla Ghuala (“son of the gluttonous lad”), from giolla (“boy, lad”) and guala (“gullet, gut”).
Etymology from Wiktionary, CC BY-SA 4.0.