The story
- Irish · derived fromÓ Fionnmhacáin“descendant of Fionnmhacán”
- English todayFinucane
Reduced Anglicized form of Irish Ó Fionnmhacáin (“descendant of Fionnmhacán”), a personal name composed by the elements fionn (“fair, white”) + macán, a diminutive of mac (“son”).
Etymology from Wiktionary, CC BY-SA 4.0.