_Daley._ _Dall_, blind; _eać_, individual. Blind person.
_Dall._ _Dâll_, blind, sightless.
_Dana._ _Dana_, strong, powerful, mighty; bold, daring.
_Darr._ _Daor_, pronounced _deer_, dear, condemned.
_Darra._ _Daor_, dear; _a_, contraction of _neać_, an individual. A
person of wealth.
_Darragh._ Same derivation as Darra. In certain parts of Ireland, _ać_ is
pronounced _agh_, or _ach_. Darrach is an apt illustration of the latter
sound.
_Dearr._ _Daor_, dear. Perhaps in Darr, Darrach, etc., the _e_, in the
course of time, has been dropped for the sake of brevity, or to satisfy
the whims of the possessors of those names.
_Deaver._ Originally _Duib́ir_, from _dub́_, black; _ir_, man. A
dark-complexioned man.
_Deegan._ _De_, of God; _gan_, an offspring. Son of God. Degan has the
same signification.
_Deor._ _Daor_, dear.
_Dermod._ Originally _Diarmoid_, from _Dia_, God; _armoid_, of arms. God
of arms.
_Dermott._ See Dermod for derivation. So intimately related are the
dentals _t_ and _d_, that it is not at all unreasonable that they should
be interchangeable.
_Derr._ _Dair_, an oak.
_Devlin._ _Dub́_, black; _linn_, a marsh, a swamp.
_Dill._ _Dill_, fond, affectionate.
_Dinnan._ _Dion_, protection; _an_, implying a person. A protegé.
_Donahugh._ _Dona_, unhappy, bad, evil; _Hugh_, the Dutch for spirit. An
evil spirit; an unhappy disposition.
_Donegan._ _Dona_, unhappy; _gan_, offspring. An unhappy child.
_Donnell._ _Doḿnać_, Sunday, _aille_, of beauty. The Sunday of beauty.
Perhaps, Irish for Daniel.
_Dooner._ _Dun_, a fort, a stronghold; _er_ for _fear_, a man. The
defender of a fort.
_Dooley._ _Duil_, expectation; _eać_, an individual. A sanguine person.
_Dornan._ _Dorn_, a clenched fist; _an_, denoting personality. A pugilist.
_Duff._ _Dub́_, pronounced _dubh_ or _duv_, black.
_Duffy._ _Dub́_, black; _eać_, an individual. A black person.
_Dunbarton._ _Dun_, a stronghold; _barton_, a corruption of _Britain_. A
stronghold of the Britain.
_Dunaghan._ _Dun_, a stronghold; _a_ for _an_, of the; _gean_, affection.
A stronghold of the affection.
_Duncan._ _Dun_, a fort; _cean_, a head. The head of a fort; a chieftain.
_Dungan._ Contraction of _Dungannon_, which, in Irish, is _Dungeanain_.
From _dun_, a stronghold; _gein_, affection; _ain_, a land. A stronghold
of the land of affection.
_Dunkin._ _Dun_, stronghold; _cinn_, genitive of _ceann_, head. The
stronghold of the head.
_Dundore._ _Dun_, stronghold, _de_, of; _oir_, gold. Stronghold of gold.
_Dunmore._ _Dun_, the fort; _an_, of the; _oir_, gold; originally,
_Dun-an-oir_. The fort of the gold.
_Dunmoulin._ _Dun_, the fort; _muillin_, a mill. The fort of the mill.
_Dunn._ _Dun_, a fort, a stronghold, a castle, a hill, a mound.
_Dunpatrick._ _Dun_, stronghold; _Padruic_, Patrick. The stronghold of
Patrick.