E
Easky in Sligo; from the river:— Iaseach [Eeska], fishy (from iasg, a fish).
Eden: Eudon [edan], the brow; a hill brow.
Edenderry; the hill brow of the oak wood.
Edenmore; great hill brow.
Edergole, Edergoole; see Addergoole.
Eglish; a church; same as Aglish.
Eighter; Iochtar [eeter], lower.
Eliogarty in Tipperary; a shortened form of Ely O’Fogarty (shortened by having the f aspirated and omitted), O’Fogarty’s Ely, so called from its ancient possessors the O’Fogartys. See Ely.
Elphin in Roscommon. St. Patrick founded a church here near a spring, over which stood a large stone; and hence the place was called Aill-finn, which Col­gan interprets the rock (aill) of the clear spring (finn white, clear).
Ely. The different tribes called Eile or Ely were so named from their ancestor Eile, the seventh in descent from Cian, son of Olioll Olum (see Connello).
Emlagh; Imleach [Imlagh], land bordering on a lake; and hence a marshy or swampy place.
Emly in Tipperary. St. Ailbhe founded his establishment here in the fifth century, on the margin of a lake, which has been only lately drained. The place is called in the Irish authorities Imleach-iobhair, [yure], the lake-marsh of the yew tree.
Emlygrennan in Limerick; a corruption of the Irish name Bile-Ghroidhnín [Billa-Gryneen], Grynan’s ancient tree.
Enagh, the name of twenty townlands. Sometimes Aenach, a fair; sometimes Eanach, a marsh.
Ennereilly in Wicklow; Inbher-Daeile [Invereela], F.M., the inver or mouth of the river formerly called the Deel, now the Pennycomequick.
Ennis; inis, an island; a meadow along a river.
Enniskeen; Inis-caein [keen], F.M., beautiful island or river meadow.
Enniskerry; Ath-na-scairbhe [Annascarvy], the ford of the scarriff or rough river-crossing; from an ancient stony ford where the old road crosses the river.
Enniskillen; Inin-Cethlenn [Kehlen], F.M., the island of Kethlenn, wife of Balor, the Fomorian king of Tory Island.
Ennistimon; Inis-Diomain, F.M., Diaman’s river meadow.
Errigal; Aireagal, a habitation, a small church.
Errigal Keeroge in Tyrone; Aireagal Dachiarog [Da­keeroge], F.M., the church of St. Dachiarog.
Errigal Trough in Monaghan; the church of (the barony of) Trough.
Esker; Eiscir, a sandhill.
Eskeragh, Eskragh; a place full of eskers.
Ess, Essan, Essaun; a waterfall.
Estersnow in Roscommon; a strange corruption from the Irish Disert-Nuadhan (Nooan), F.M., the hermitage of St. Nuadha (Nooa). Disert is often corrupted to ister, ester, tirs, tristle, &c.

F
Faddan; Feadan, a small brook.
Faha,Fahy; an exercise green.
Farrnagh, Farnane, Farnoge; a place of Fearns [Farns], or alders.
Farney in Monaghan; Fearnmhagh, (Farnvah), Book of R., the alder plain (fearn and magh).
Farran; Fearann, land.
Farset, Farsid; Fearsad, a sandbank in a river.
Fartagh, Fertagh; a place of graves (feart).
Fasagh, Fassagh; a wilderness (Fásach).
Fassadinin in Kilkenny; the fasagh or wilderness of, or near, the river Dinin.
Feagh; Fiodhach [Feeagh], a woody place (fidh).
Fearmore; great grass (féur) or grassy place.
Feddan; the same as Faddan.
Feenagh; Fiodhnach [Feenagh], woody (fidh); a woody place.
Feighcullen in Kildare; Fiodh-Chuilinn, F.M., Cullen’s wood.
Fenagh; the same us Feenagh.
Fennor; Fionnabhair [Finner], F.M., white field.
Fermanagh; so called from the tribe of Fir-Monach, (O’Dugan), the men of Monach, who were originally a Leinster tribe, so named from their ancestor, Monach, fifth in descent from Cahirmore, monarch of Ireland from A.D. 120 to 123.
Fermoy in Cork; Feara-muighe [Farra-moy], O’Dugan, the men of the plain.
Fermoyle; Formaeil, a round hill.
Fernagh, Ferney; same as Farnagh.
Ferns; Fearna [Farna], F.M., alders, a place abounding in alders: English plural termination added.
Ferrard, barony of, in Louth; Feara-arda [Farra-arda], F.M., the men of the height, i.e. of Slieve Bregh.
Fethard; Fiodh-ard [Feeard], F.M., high wood.
Fews, baronies of, in Armagh; Feadha [Fā], F.M., woods; with the English plural termination added. Fews in Waterford has the same origin.
Fiddan, Fiddane, Fiddaun; same as Faddan.
Fiddown in Kilkenny; Fidh-duin [Feedoon], F.M., the wood of the dun or fort.
Fingall, a district lying north of Dublin, in which the Danes settled; and hence it was called Fine-Gall (O’C. Cal.), the territory or tribe (fine) of the Galls or foreigners.
Finglas; clear stream (fionn, white, clear; and glaise).
Finn river and lake in Donegal; Loch-Finně, the lake of Finna, a woman, about whom there is an interest­ing legend. The river took its name from the lake. See Origin and History of Irish Names of Places, page 167.
Finnea in Westmeath; Fidh-an-atha [Fee-an-aba] F.M., the wood of the ford.
Fintona; Fionn-tamhnach [Fintowna], F.M., fair coloured field.
Foil; Faill, a cliff.
Foilduff; black cliff.
Forenaght, Forenaghts, Fornaght, Farnaght; For­nocht, a bare, naked, or exposed hill.
Formil, Formoyle, Formweel; same as Fermoyle.
Forth. The descendants of Ohy Finn Fothart [Fōhart], brother of Conn of the hundred battles (king of Ireland from A.D. 123 to 158), were called Fotharta [Fōharta], Book of R. Some of them settled in the present counties of Wexford and Carlow, where the two baronies of Forth still retain their name.
Foy, Foygh; forms of Faithche. See Faha.
Foybeg, Foymore; little and great exercise green.
Foyduff; black exercise green.
Foyle; same as Foil.
Freagh, Freugh; Fraech, heath, a heathy place.
Freaghduff, Freeduff; black heath.
Freaghillan, Freaghillaun; heathy island (oileán).
Freshford; Irish name Achadh-úr (Book of Leinster), which should have been translated Freshfield: Achadh was mistaken for ath.
Freughmore, Freaghmore; great heath.
Funcheon; Fuinnseann [Funshin], the ash tree: the ash-producing river.
Funshin, Funshinagh, Funshog, Funshoge; a place producing ash trees (fuinnse).