The story
- Irish · derived fromÓ Sealbhaig“descendant of Sealbhach”
- English todayShealy
Reduced form of O'Shealy, an Anglicized form of Irish Ó Sealbhaig (“descendant of Sealbhach”), a byname from the adjective sealbhach (“wealthy”).
Etymology from Wiktionary, CC BY-SA 4.0.