From an Irish surname, an Anglicized form of
Ó Fionnagáin meaning "descendant of Fionnagán". The name
Fionnagán is a diminutive of
FIONN. This was the name of a character in James Joyce's novel 'Finnegans Wake' (1939), the title of which was based on a 19th-century Irish ballad called 'Finnegan's Wake'.
 | FIONN male Irish, Irish MythologyFrom Irish fionn (older Irish finn) meaning "fair" or "white". Fionn mac Cumhail was a legendary Irish hero who became all-wise by eating an enchanted salmon. He fought against the giant Fomors with his son Oisín and grandson Oscar. |