_Fadden._ Corruption of _Padruic_, Patrick. Patrician; nobleman.
_Fagan._ _Fat́_, cause, reason; _gan_, offspring. Result; effect;
consequence.
_Fahan._ _Fat́_, a plain, a field; _an_, indicative of a person. A
farmer; a cultivator of the earth.
_Fahy._ _Fat́_, reason; _ać_, an individual. A reasoner; a logician.
_Farnell._ _Fearn_, a shield; _aille_, beautiful. A beautiful shield.
_Farnan._ _Fearn_, a helmet; _an_, person. One who carries a helmet; a
warrior. Sometimes written Farnon.
_Farne._ _Fearn_, a shield, genitive _fearne_. Belonging to a shield.
_Farney._ _Fearn_, a helmet; _eać_, an individual. A knight; a warrior.
_Fearn._ _Fearn_, a shield, a helmet.
_Farr._ _Fear_, pronounced _far_, a man.
_Feenan._ _Fion_, pronounced _feen_, wine; _an_, a person. Wine-merchant.
_Feeney._ _Fion_, wine; _eać_, an agent. Wine-dealer.
_Fei._ _Feit́_, pronounced _fāh_, a sinew.
_Feighan._ _Feit́_, a sinew; _an_, expressive of diminutiveness. A small
sinew.
_Fenton._ _Fiontan_, perhaps, in the original, a vineyard; from _fion_,
wine; _tan_, a land.
_Fergus._ Originally, _Feargus_; from _fear_, a man; _gus_, a suffix
denoting towards. One tending towards manhood; a youth.
_Fernley._ _Fearn_, a helmet; _lać_, people. A warlike people. Fernly, a
slightly abbreviated form of the same.
_Filmore._ _File_, a poet; _Muire_, Mary. A poet devoted to Mary; one
that writes or sings of Mary.
_Finbar._ _Fionn_, pronounced _fin_, fair, white; _barr_, summit, head. A
white summit.
_Finnley._ _Fionn_, fair; _lać_, people. Fair people.
_Finne._ _Fionn_, fair, white.
_Flinn._ _Fionn_, white; _linn_, a marsh, a swamp. In allusion,
doubtless, to a summer array of white flowers. Flynn, the same word, in
slightly altered garb.
_Fow._ _Foǵ_, reward, booty, spoil.
_Fowne._ _Fionn_, fair. In Tipperary, Waterford, and Kilkenny, _fionn_ is
pronounced _fown_ and not _fin_ as is the case generally in Ireland.
_Fulmer._ _Feolmar_, jealous, envious of another’s fame, reputation, or
glory.