The story
- Irish · borrowed fromÓ Dubhshláine
- Old French · derived fromdel
- English todayDelaney
From a Norman baronial surname, from a place in France, Old French del aunaie (“from the alder grove”). In Ireland an anglicization of Irish Ó Dubhshláine (descendant of Black (dubh) + Challenge (slán)).
Etymology from Wiktionary, CC BY-SA 4.0.