Brian

Briain (genitive)
Brian (mutation mutation-radical)
Bhrian (lenition mutation)
mBrian (eclipsis mutation)

Probably from Breton Brien, Brian. The name Brian seems to have been unknown in Ireland before Brian Boru, founder of the Ua Briain or Uí Bhriain dynasty, although the possibly related name Brión is found earlier, in Brión mac Echach Muigmedóin, the 4th/5th century ancestor of the Uí Briúin dynasty.

Brian Boru
Brión mac Echach Muigmedóin
O'Brien dynasty
Uí Briúin


Caoimhín

Chaoimhín (genitive)
Caoimhín (mutation mutation-radical)
Chaoimhín (lenition mutation)
gCaoimhín (eclipsis mutation)

→ English: Kevin (see there for further descendants)

From Old Irish Cóemgen. By surface analysis, caomh (“dear”) + -ín. Compare Serbo-Croatian Dragan.

surf

a male given name from Old Irish, equivalent to English Kevin


Árdal

Árdal (mutation mutation-radical)
nÁrdal (eclipsis mutation)
hÁrdal (mutation prothesis-h)
tÁrdal (mutation prothesis-t)

From Old Irish Artgal (literally “bear-fury”).


Cian

Chiain (genitive)
Cian (mutation mutation-radical)
Chian (lenition mutation)
gCian (eclipsis mutation)

→ English: Kian

From Old Irish Cían, from cían (“long, distant, lasting”).

a male given name from Old Irish used in Ireland


Ruairí

→ English: Rory

→ Fingallian: Rory

From Old Irish Ruaidrí. Cognate to Scottish Gaelic Ruairidh and Manx Ruaree.

a male given name from Old Irish, equivalent to English Rory


Fionn

→ English: Finn

→⇒ English: Fiona

Fionn (mutation mutation-radical)
Fhionn (lenition mutation)
bhFionn (eclipsis mutation)

From Old Irish Finn, an epithet from the adjective finn (“white, bright, fair, handsome”).


Nollaig

head

Nollaig f (genitive Nollag, nominative plural Nollaigí)

Nollag (genitive)
Nollaigí (nominative plural)
Nollaig (indefinite nominative singular)
Nollaigí (indefinite nominative plural)
a Nollaig (indefinite singular vocative)
a Nollaigí (indefinite plural vocative)
Nollag (genitive indefinite singular)
Nollaigí (genitive indefinite plural)
Nollaig (dative indefinite singular)
Nollaigí (dative indefinite plural)
an Nollaig (definite nominative singular)
na Nollaigí (definite nominative plural)
na Nollag (definite genitive singular)
na Nollaigí (definite genitive plural)
leis an Nollaig (dative definite singular)
don Nollaig (dative definite singular)
leis na Nollaigí (dative definite plural)

/ˈn̪ˠɔl̪ˠɪɟ/

/ˈn̪ˠɔl̪ˠɪc/

/ˈn̪ˠʌl̪ˠɪc/

From Old Irish Notlaic, from Latin nātālīcia (“a birthday party”), from nātālis (“natal”), from nātus (“born”). Compare Welsh Nadolig, Breton Nedeleg and French Noël.

a male or female given name from Latin, equivalent to English Noel or Noelle


Niall

From Old Irish Níall, of uncertain original meaning. Suggestions include nél (“cloud”) and niadh (“champion”).


Seán

Seáin (genitive)
Seán (indefinite nominative singular)
a Sheáin (indefinite singular vocative)
Seáin (genitive indefinite singular)
Seán (dative indefinite singular)
an Seán (definite nominative singular)
an tSeáin (definite genitive singular)
leis an Seán (dative definite singular)
don Seán (dative definite singular)
Seán (mutation mutation-radical)
Sheán (lenition mutation)
tSeán (lenition mutation)

desc

→ English: Sean, Shaun, Shawn, Shon, Shane

Borrowed from Old French Jehan, from Latin Iōhannēs, from Ancient Greek Ἰωάννης (Iōánnēs), contraction from Hebrew יוֹחָנָן (yōḥānān, literally “God is gracious”).

der

a male given name from Old French, equivalent to English John or French Jean


Alastar

Alastair (genitive)
Alastar (mutation mutation-radical)
nAlastar (eclipsis mutation)
hAlastar (mutation prothesis-h)
tAlastar (mutation prothesis-t)

/ˈal̪ˠəsˠt̪ˠəɾˠ/

From Old Irish Alaxander, borrowed from Latin Alexander, from Ancient Greek Ἀλέξανδρος (Aléxandros), from ἀλέξω (aléxō, “I defend”) + ἀνδρός (andrós), genitive of ἀνήρ (anḗr, “man”).

a male given name, equivalent to English Alexander or Alec


Rónán

→ English: Ronan

→ French: Ronan

→ Yola: Ronaan

a male given name, equivalent to English Ronan


Aodh

Aodha (genitive)
Aodh (mutation mutation-radical)
nAodh (eclipsis mutation)
hAodh (mutation prothesis-h)
tAodh (mutation prothesis-t)

a male given name from Old Irish of Gaelic origin, sometimes used as a form of Hugh


Fearghas

Fearghasa (genitive)
Fearghas (indefinite nominative singular)
a Fhearghas (indefinite singular vocative)
Fearghasa (genitive indefinite singular)
Fearghas (dative indefinite singular)
an Fearghas (definite nominative singular)
an Fhearghasa (definite genitive singular)
leis an bhFearghas (dative definite singular)
don Fhearghas (dative definite singular)
Fearghas (mutation mutation-radical)
Fhearghas (lenition mutation)
bhFearghas (eclipsis mutation)

/fʲaˈɾˠiːsˠ/

/ˈfʲæːɾˠiːsˠ/

/ˈfʲaɾˠəɡəsˠ/

a male given name from Old Irish of Gaelic origin


Fionnghall

Fionnghaill (genitive)
Fionnghall (mutation mutation-radical)
Fhionnghall (lenition mutation)
bhFionnghall (eclipsis mutation)

From fionn (“fair”) + Gall (“foreigner”).


Peadar

Pheadair (genitive)
Peadar (indefinite nominative singular)
a Pheadair (indefinite singular vocative)
Peadair (genitive indefinite singular)
Peadar (dative indefinite singular)
an Peadar (definite nominative singular)
an Pheadair (definite genitive singular)
leis an bPeadar (dative definite singular)
don Pheadar (dative definite singular)
Peadar (mutation mutation-radical)
Pheadar (lenition mutation)
bPeadar (eclipsis mutation)

/ˈpʲad̪ˠəɾˠ/

From Old Irish Petur, from Latin Petrus, from Ancient Greek Πέτρος (Pétros), from πέτρος (pétros, “stone, rock”).

a male given name from Ancient Greek, equivalent to English Peter


Liam

Clipping of Uilliam, from English William.

a male given name from English, equivalent to English Bill or Will


Pól

Phóil (genitive)
Pól (indefinite nominative singular)
a Phóil (indefinite singular vocative)
Póil (genitive indefinite singular)
Pól (dative indefinite singular)
an Pól (definite nominative singular)
an Phóil (definite genitive singular)
leis an bPól (dative definite singular)
don Phól (dative definite singular)
Pól (mutation mutation-radical)
Phól (lenition mutation)
bPól (eclipsis mutation)

From Latin Paulus, perhaps via Anglo-Norman Pol and/or English Paul.

a male given name from Latin, equivalent to English Paul


Colm

Choilm (genitive)
Colm (mutation mutation-radical)
Cholm (lenition mutation)
gColm (eclipsis mutation)

→ English: Colm

From Middle Irish Colm, from Late Latin Columba (literally “dove”). Cognate with Scottish Gaelic Calum.

a male given name from Latin, equivalent to English Columba


Ciarán

Chiaráin (genitive)
Ciarán (mutation mutation-radical)
Chiarán (lenition mutation)
gCiarán (eclipsis mutation)

desc

→ English: Ciaran, Keiran, Kieran, Kieron

/ciəˈɾˠɑːn̪ˠ/

/ˈciəɾˠɑːnˠ/

From Old Irish Cíarán, originally a byname from ciar (“black”) + -án. Popularized by Irish saints dating back from the 5th century.


Cillian

Cillian (genitive)
Cillian (mutation mutation-radical)
Chillian (lenition mutation)
gCillian (eclipsis mutation)

→ English: Killian, Kilian, Cillian

→ German: Kilian

→ Icelandic: Kiljan, Kilían

→ Swedish: Kilian

/cɪˈlʲiən̪ˠ/

/ˈcɪl̠ʲiənˠ/

Irish saint's name, possibly derived from ceallach (“strife”) (ultimately from Proto-Indo-European *kelh₂- (“to beat, strike”)) or ceall (“monastery, church”).


Cormac

Chormaic (genitive)
Cormac (indefinite nominative singular)
a Chormaic (indefinite singular vocative)
Cormaic (genitive indefinite singular)
Cormac (dative indefinite singular)
an Cormac (definite nominative singular)
an Chormaic (definite genitive singular)
leis an gCormac (dative definite singular)
don Chormac (dative definite singular)
Cormac (mutation mutation-radical)
Chormac (lenition mutation)
gCormac (eclipsis mutation)

From Old Irish Cormac, older Corbmac (see the Old Irish entry).


Séamas

Séamais (genitive)
Séamas (indefinite nominative singular)
a Shéamais (indefinite singular vocative)
Séamais (genitive indefinite singular)
Séamas (dative indefinite singular)
an Séamas (definite nominative singular)
an tSéamais (definite genitive singular)
leis an Séamas (dative definite singular)
don Séamas (dative definite singular)
Séamas (mutation mutation-radical)
Shéamas (lenition mutation)
tSéamas (lenition mutation)

→ English: Seamus

Borrowed from English James, from Middle English James, from Old French James, from Vulgar Latin Iacomus, variant form of Latin Iacobus, from Ancient Greek Ἰακώβ (Iakṓb), from Hebrew יַעֲקֹב (Yaʿăqōḇ). Doublet of Iacób.

Hebrew יַעֲקֹב (Yaʿăqōḇ)

a male given name from Hebrew, equivalent to English James or Jacob


Pádraic

Phádraic (genitive)
Pádraic (mutation mutation-radical)
Phádraic (lenition mutation)
bPádraic (eclipsis mutation)

From Latin patricius (“patrician”), via Old Welsh.

a male given name, equivalent to English Patrick


Pádraig

Phádraig (genitive)
Pádraig (mutation mutation-radical)
Phádraig (lenition mutation)
bPádraig (eclipsis mutation)

/ˈpˠɑːd̪ˠəɾˠɪɟ/

From Latin Patricius, likely via Old Welsh. Replaced Old Irish Cothraige, a much earlier borrowing as shown by the replacement of Latin p with c.

a male given name from Latin, equivalent to English Patrick

Pota Pádraig

drink to celebrate St. Patrick’s Day; St. Patrick’s Pot


Iúil

head

Iúil m (genitive Iúil, nominative plural Iúileanna)

Iúil (genitive)
Iúileanna (nominative plural)
Iúil (indefinite nominative singular)
Iúileanna (indefinite nominative plural)
a Iúil (indefinite singular vocative)
a Iúileanna (indefinite plural vocative)
Iúil (genitive indefinite singular)
Iúileanna (genitive indefinite plural)
Iúil (dative indefinite singular)
Iúileanna (dative indefinite plural)
an tIúil (definite nominative singular)
na hIúileanna (definite nominative plural)
an Iúil (definite genitive singular)
na nIúileanna (definite genitive plural)
leis an Iúil (dative definite singular)
don Iúil (dative definite singular)
leis na hIúileanna (dative definite plural)
Iúil (mutation mutation-radical)
nIúil (eclipsis mutation)
hIúil (mutation prothesis-h)
tIúil (mutation prothesis-t)

a male given name from Latin, equivalent to English Jules or Julius


Tomás

Thomáis (genitive)
Tomás (mutation mutation-radical)
Thomás (lenition mutation)
dTomás (eclipsis mutation)

/t̪ˠəˈmˠɑːsˠ/

/ˈt̪ˠʊmˠɑːsˠ/

/ˈt̪ˠɔmˠasˠ/

From Ancient Greek Θωμᾶς (Thōmâs), from Aramaic תאומא (“twin”).

a male given name from Aramaic, equivalent to English Thomas


Micheál

Michíl (genitive)
Micheál (mutation mutation-radical)
Mhicheál (lenition mutation)

/ˈmʲiːɑːl̪ˠ/

From Latin Michael, Michahel, from Biblical Hebrew מִיכָאֵל (mîḵāʾēl, “who is like God?”).

der

a male given name from Hebrew, equivalent to English Michael


Oisín

Oisín (genitive)
Oisín (mutation mutation-radical)
nOisín (eclipsis mutation)
hOisín (mutation prothesis-h)
tOisín (mutation prothesis-t)

→ English: Ossian

→ Welsh: Osian

From oisín (“fawn”), from os (“deer”) + -ín (diminutive suffix); name of a hero in Irish mythology.

a male given name, equivalent to English Ossian

Oisín i ndiaidh na Féinne

someone/something outdated; Oisín after the Fianna


Cathal

Chathail (genitive)
Cathal (mutation mutation-radical)
Chathal (lenition mutation)
gCathal (eclipsis mutation)

From Old Irish Cathal, from Proto-Celtic *Katuwalos (“strong in battle”), cognate with Gaulish Katouualos, Old Welsh Catgual, Welsh Cadwal. Related to Irish cath (“battle”), Proto-Celtic *walos (“prince, chief”), and the -all name suffix in Domhnall and Dónall (“Donald”), and Conall (“Connel”).

inh

a male given name from Old Irish, equivalent to English Charles


Colmán

Cholmáin (genitive)
Colmán (mutation mutation-radical)
Cholmán (lenition mutation)
gColmán (eclipsis mutation)

→ English: Colman

/kɔl̪ˠəˈmˠɑːn̪ˠ/

/ˈkɔlˠəmˠɑːnˠ/

/ˈkɔl̪ˠəmˠɑːn̪ˠ/

/ˈkɔl̪ˠəmˠan̪ˠ/

From Middle Irish Colmán. Equivalent of colm (“dove”) + -án (diminutive).

a male given name from Middle Irish, equivalent to English Colman


Lughaidh

From Old Irish Lugaid, from Primitive Irish ᚂᚒᚌᚒᚇᚓᚉᚉᚐᚄ (lugudeccas), from Proto-Celtic *Lugudeks (“one who serves the god Lugus”) from *Lugus + *dekos (“honor”), from Proto-Indo-European *déḱos (“that which is proper”). Compare Gaulish Lucudeca.

a male given name from Old Irish, sometimes Anglicized as Louis or Lewey


Éadbhard

/ˈiːa̯d̪ˠvˠəɾˠd̪ˠ/

/ˈeːd̪ˠwəɾˠd̪ˠ/

From English Edward, from Old English Ēadweard.

a male given name from Old English, equivalent to English Edward


Séarlas

Shéarlais (genitive)
Séarlas (mutation mutation-radical)
Shéarlas (lenition mutation)
tSéarlas (lenition mutation)

/ˈʃeːɾˠl̪ˠəsˠ/

a male given name, equivalent to English Charles


Aonghas

Aonghasa (genitive)
Aonghas (mutation mutation-radical)
nAonghas (eclipsis mutation)
hAonghas (mutation prothesis-h)

From Middle Irish Aengus, Oengus, from Old Irish Oíngus, from oín (“one”), from Proto-Celtic *oinos, from Proto-Indo-European *óynos (“single, one”). The etymology of the second element is disputed; most likely it is gus (“strength, vigour”), from Proto-Celtic *gustus, or it may be from Proto-Indo-European *ǵews- (“choose”).

der

a male given name from Old Irish, equivalent to English Angus


Máirtín

Mháirtín (genitive)
Máirtín (mutation mutation-radical)
Mháirtín (lenition mutation)

[mˠɑːɾˠˈtʲiːnʲ]

[ˈmˠɑːɾˠtʲiːnʲ]

[ˈmˠæːɾˠˈtʲinʲ]

From Latin Martinus, re-formed to contain the suffix -ín.

a male given name from Latin, equivalent to English Martin


Ailbín

Ailbín (genitive)
Ailbín (mutation mutation-radical)
nAilbín (eclipsis mutation)
hAilbín (mutation prothesis-h)
tAilbín (mutation prothesis-t)

Early saints' name, from the Roman cognomen Albīnus, derivative of Latin albus (“white”).

a male given name from Latin, equivalent to English Albin


Dinísias

Dinísias (genitive)
Dinísias (mutation mutation-radical)
Dhinísias (lenition mutation)
nDinísias (eclipsis mutation)

Borrowed from Latin Dionysius, from Ancient Greek Διονυσιος (Dionusios).

a male given name from Ancient Greek, equivalent to English Dionysius or Dennis


Ruadhán

Ruadháin (genitive)
Ruadhán (indefinite nominative singular)
a Ruadháin (indefinite singular vocative)
Ruadháin (genitive indefinite singular)
Ruadhán (dative indefinite singular)
an Ruadhán (definite nominative singular)
an Ruadháin (definite genitive singular)
leis an Ruadhán (dative definite singular)
don Ruadhán (dative definite singular)

/ɾˠuːˈɑːn̪ˠ/

From Old Irish Rúadán, from Primitive Irish ᚏᚑᚇᚐᚌᚅᚔ (rodagni, genitive). By surface analysis, ruadh (“red, auburn”) + -án.

surf

a male given name from Old Irish, sometimes Anglicized as Rowan


Breandán

Breandáin (genitive)
Breandán (mutation mutation-radical)
Bhreandán (lenition mutation)
mBreandán (eclipsis mutation)

Borrowed from Latin Brendanus, from Old Irish Brénainn, from Old Welsh breenhin (“prince, king”), ultimately from Proto-Celtic *brigantīnos (“(someone) pre-eminent, outstanding”), a diminutive of *brigantī (“high, exalted”).

der

a male given name from Old Irish, equivalent to English Brendan


Artúr

Artúir (genitive)
Artúr (mutation mutation-radical)
nArtúr (eclipsis mutation)
hArtúr (mutation prothesis-h)

From Middle Irish Artúr, from Medieval Latin Arthurus, probably from Proto-Brythonic *arθ (“bear”).

a male given name, equivalent to English Arthur


Aindriú

a male given name from Ancient Greek, equivalent to English Andrew


Aindrias

Aindréis (genitive)
Aindrias (mutation mutation-radical)
nAindrias (eclipsis mutation)
hAindrias (mutation prothesis-h)

/ˈaːnˠɾˠasˠ/

Borrowed from Ancient Greek Ἀνδρέᾱς (Andréās).


Maitiú

a male given name from Biblical Hebrew, equivalent to English Matthew


Mathúin

Mathúna (genitive)
Mathúin (mutation mutation-radical)
Mhathúin (lenition mutation)

From mathúin, from Old Irish mathgamain (“bear”).

a male given name from Old Irish, Anglicized as Matthew


Mártan

Mhártain (genitive)
Mártan (mutation mutation-radical)
Mhártan (lenition mutation)

a male given name, equivalent to English Martin


Bréanainn

Bréanainn (genitive)
Bréanainn (mutation mutation-radical)
Bhréanainn (lenition mutation)
mBréanainn (eclipsis mutation)

From Old Irish Brénainn, from Old Welsh breenhin (“prince, king”), ultimately from Proto-Celtic *brigantīnos (“(someone) pre-eminent, outstanding”), a diminutive of *brigantī (“high, exalted”).


Seosamh

Seosaimh (genitive)
Seosamh (mutation mutation-radical)
Sheosamh (lenition mutation)
tSeosamh (lenition mutation)

Borrowed from Old French Joseph, from Latin Iōsēphus, from Ancient Greek Ἰωσήφ (Iōsḗph), Ἰώσηπος (Iṓsēpos), from Hebrew יוֹסֵף (Yosef, literally “(God) shall add”).

der

a male given name from Old French, equivalent to English Joseph


Eoin

Eoin (genitive)
Eoin (mutation mutation-radical)
nEoin (eclipsis mutation)
hEoin (mutation prothesis-h)

From Old Irish Iohain, from Latin Iōannēs, from Ancient Greek Ἰωάννης (Iōánnēs), from Hebrew יוֹחָנָן (Yôḥānān, literally “God is gracious”).

a male given name from Latin, equivalent to English John, often confused with the unrelated native name, Eoghan


Constaintín

Constaintín (genitive)
Constaintín (mutation mutation-radical)
Chonstaintín (lenition mutation)
gConstaintín (eclipsis mutation)

a male given name from Latin, equivalent to English Constantine


Ainseilm

Ainseilm (genitive)
Ainseilm (mutation mutation-radical)
nAinseilm (eclipsis mutation)
hAinseilm (mutation prothesis-h)
tAinseilm (mutation prothesis-t)

From Proto-Germanic *ansuz (“god”) + helm (“helmet”).

a male given name, equivalent to English Anselm


Seoirse

Sheoirse (genitive)
Seoirse (mutation mutation-radical)
Sheoirse (lenition mutation)
tSeoirse (lenition mutation)

From Old Northern French Georges, from Latin Geōrgius, from Ancient Greek Γεώργιος (Geṓrgios).

a male given name from Ancient Greek, equivalent to English George


Éamann

Éamainn (genitive)
Éamann (mutation mutation-radical)
nÉamann (eclipsis mutation)
hÉamann (mutation prothesis-h)
tÉamann (mutation prothesis-t)

From Old English Ēadmund, from ēad (“prosperity”) + mund (“protection”).

a male given name from English, equivalent to English Edmund


Conchúr

Conchúir (genitive)
Conchúr (indefinite nominative singular)
a Chonchúir (indefinite singular vocative)
Conchúir (genitive indefinite singular)
Conchúr (dative indefinite singular)
an Conchúr (definite nominative singular)
an Chonchúir (definite genitive singular)
leis an gConchúr (dative definite singular)
don Chonchúr (dative definite singular)
Conchúr (mutation mutation-radical)
Chonchúr (lenition mutation)
gConchúr (eclipsis mutation)

→ English: Conor, Connor

/ˈkʊnˠəxuːɾˠ/

/ˈknˠʊxuːɾˠ/

/ˈkɾˠɔxuːɾˠ/

/ˈkʊnˠxuːɾˠ/

/ˈkɾˠʌ̃xəɾˠ/

From Old Irish Conchobar, from cú, con (“hound”) + cobar (“desiring”).

a male given name from Old Irish, equivalent to English Connor


Nioclás

[ˈn̠ʲɪklˠaːsˠ]

From Ancient Greek Νικόλαος (Nikólaos), from νίκη (níkē, “victory”) + λαός (laós, “people”).

a male given name from Ancient Greek, equivalent to English Nicholas


Antóin

Antóin (genitive)
Antóin (mutation mutation-radical)
nAntóin (eclipsis mutation)
hAntóin (mutation prothesis-h)
tAntóin (mutation prothesis-t)

/an̪ˠt̪ˠənʲ/

a male given name, equivalent to English Anthony


Antaine

Antaine (genitive)
Antaine (mutation mutation-radical)
nAntaine (eclipsis mutation)
hAntaine (mutation prothesis-h)

/ˈan̪ˠt̪ˠənʲə/


Proinsias

Phroinsias (genitive)
Proinsias (mutation mutation-radical)
Phroinsias (lenition mutation)
bProinsias (eclipsis mutation)

a male given name, equivalent to English Francis


Conn

Choinn (genitive)
Conn (mutation mutation-radical)
Chonn (lenition mutation)
gConn (eclipsis mutation)

a male given name from Old Irish used in Ireland


Diarmaid

Diarmada (genitive)
Diarmaid (mutation mutation-radical)
Dhiarmaid (lenition mutation)
nDiarmaid (eclipsis mutation)

→ English: Dermot

→ Yola: Dearmoth

/ˈdʲiəɾˠmˠədʲ/

/ˈdʲɛɾˠəmˠədʲ/

From Old Irish Diarmait; anterior etymology unknown. Possibly from dí (“without”) + airmit (“injunction”) or airmait (“envy”) (see format).


Donncha

Donncha (genitive)
Donncha (mutation mutation-radical)
Dhonncha (lenition mutation)
nDonncha (eclipsis mutation)

→ English: Donough, Donagh

/ˈd̪ˠɔn̪ˠəxə/

/ˈd̪ˠʊn̪ˠəxə/

/ˈd̪ˠʌn̪ˠaxə/

From Old Irish Donnchad, from donn (“brown”) and cath (“battle”). Compare Scottish Gaelic Donnchadh.

a male given name from Old Irish, equivalent to English Duncan


Séamaisín

Séamaisín (genitive)
Séamaisín (mutation mutation-radical)
Shéamaisín (lenition mutation)
tSéamaisín (lenition mutation)

[ʃeːmˠəˈʃiːnʲ]

[ˈʃeːmˠəʃiːnʲ]

[ˈʃeːmˠəʃinʲ]

From Séamas (“James”) + -ín (diminutive suffix).

af

a diminutive of the male given name Séamas, equivalent to English Jim or Jimmy


Tomáisín

Tomáisín (genitive)
Tomáisín (mutation mutation-radical)
Thomáisín (lenition mutation)
dTomáisín (eclipsis mutation)

[t̪ˠəmˠɑːˈʃiːnʲ]

[ˈt̪ˠʊmˠɑːʃiːnʲ]

[ˈt̪ˠʊmˠæʃinʲ]

From Tomás (“Thomas”) + -ín (diminutive suffix).

a diminutive of the male given name Tomás, equivalent to English Tom or Tommy


Seáinín

Sheáinín (genitive)
Seáinín (mutation mutation-radical)
Sheáinín (lenition mutation)
tSeáinín (lenition mutation)

[ʃaːˈnʲiːnʲ]

[ˈʃɑːnʲiːnʲ]

From Seán (“John”) + -ín (diminutive suffix).

a diminutive of the male given name Seán, equivalent to English Johnny


Páidín

Pháidín (genitive)
Páidín (mutation mutation-radical)
Pháidín (lenition mutation)
bPáidín (eclipsis mutation)

→ Fingallian: Padeen

→ Yola: Paudeen

/pˠɑːˈdʲiːnʲ/

/ˈpˠɑːdʲiːnʲ/

/ˈpˠæːdʲinʲ/

a diminutive of the male given name Pádraig, equivalent to English Paddy


Conall

Chonaill (genitive)
Conall (mutation mutation-radical)
Chonall (lenition mutation)
gConall (eclipsis mutation)

From Old Irish Conall, from Proto-Celtic *Kunowalos, from *kū (“dog, hound”) + *walos (“prince, chief”).

Conallach

person named Mac Conaill/Nic Chonaill or Ó Conaill/Ní Chonaill


Ádhamh

Ádhaimh (genitive)
Ádhamh (indefinite nominative singular)
a Ádhaimh (indefinite singular vocative)
Ádhaimh (genitive indefinite singular)
Ádhamh (dative indefinite singular)
an tÁdhamh (definite nominative singular)
an Ádhaimh (definite genitive singular)
leis an Ádhamh (dative definite singular)
don Ádhamh (dative definite singular)
Ádhamh (mutation mutation-radical)
nÁdhamh (eclipsis mutation)
hÁdhamh (mutation prothesis-h)
tÁdhamh (mutation prothesis-t)

From Old Irish Ádam, from Latin Ādām, Ādāmus, from Ancient Greek Ἀδάμ, Ἄδαμος (Adám, Ádamos), from Biblical Hebrew אָדָם (ʾāḏām, “person, human”), from אֲדָמָה (ʾăḏāmâ, “earth, soil”).

der

Ἀδάμ, Ἄδαμος

a male given name from Hebrew, equivalent to English Adam


Fachtna

Fachtna (genitive)
Fachtna (mutation mutation-radical)
Fhachtna (lenition mutation)
bhFachtna (eclipsis mutation)

Related to Fachanan, Fachtnán, Fachtnan and Faughnan.
Perhaps derived from Latin facundus.
See also Cill Fachna Bheag and Kilfaughnabeg.


Risteard

/ˈɾˠɪʃˌtʲɑːɾˠd̪ˠ/

Borrowed from Middle English Rycharde, from Old French Richard, from Frankish *Rīcohard (literally “powerful leader”), from Proto-Germanic *rīkô (“ruler, chief, leader”) + *harduz (“hard”).

a male given name from the Germanic languages, equivalent to English Richard


Aralt

Arailt (genitive)
Aralt (mutation mutation-radical)
nAralt (eclipsis mutation)
hAralt (mutation prothesis-h)
tAralt (mutation prothesis-t)

a male given name, equivalent to English Harold


Roibeárd

/ˈɾˠɛbʲɑːɾˠd̪ˠ/

From Middle Irish Roberd, borrowing of Old French Robert.

a male given name, equivalent to English Robert


Vailintín

From Latin Valentinus, from valēns (“strong, vigorous, healthy”), present active participle of valeō (“I am strong”).


Eoghan

Eoghain (genitive)
Eoghan (mutation mutation-radical)
nEoghan (eclipsis mutation)
hEoghan (mutation prothesis-h)
tEoghan (mutation prothesis-t)

From Middle Irish Eógan, from Primitive Irish ᚔᚃᚑᚌᚓᚅᚔ (ivogeni, gen.sg.), from Proto-Celtic *Iwogenos (literally “yew-born”). Cognate with Scottish Gaelic Eòghann.
Sometimes conflated or confused with the etymologically unrelated name Eoin (“John”), with which the vocative/genitive form Eoghain is homophonous.

inh

Eoghanach

member of Cineál Eoghain; native of Tyrone


Donn

Doinn (genitive)
Donn (indefinite nominative singular)
a Dhoinn (indefinite singular vocative)
Doinn (genitive indefinite singular)
Donn (dative indefinite singular)
an Donn (definite nominative singular)
an Doinn (definite genitive singular)
leis an Donn (dative definite singular)
don Donn (dative definite singular)
Donn (indefinite nominative singular)
a Dhuinn (indefinite singular vocative)
Duinn (genitive indefinite singular)
Donn (dative indefinite singular)
an Donn (definite nominative singular)
an Duinn (definite genitive singular)
leis an Donn (dative definite singular)
don Donn (dative definite singular)
Donn (mutation mutation-radical)
Dhonn (lenition mutation)
nDonn (eclipsis mutation)

From donn (“noble, prince”), from Old Irish, from Proto-Indo-European *dʰus-no-.


Tadhg

Thaidhg (genitive)
Tadhg (mutation mutation-radical)
Thadhg (lenition mutation)
dTadhg (eclipsis mutation)

→ English: taig, Teague

→ Yola: Thieg

From Middle Irish Tadg (whence also Old Norse Taðkr), from the common noun tadg (“poet”), from pre-Goidelic *tazgos, from Proto-Celtic *taskos (“badger”). Cognate with Manx Taig and with Gaulish names like Tasgetius, Tasciovanus, Moritasgus.

a male given name from Old Irish, historically anglicized as Thaddeus or Timothy but etymologically unrelated to them.


Uinseann

Uinsinn (genitive)
Uinseann (indefinite nominative singular)
a Uinsinn (indefinite singular vocative)
Uinsinn (genitive indefinite singular)
Uinseann (dative indefinite singular)
an tUinseann (definite nominative singular)
an Uinsinn (definite genitive singular)
leis an Uinseann (dative definite singular)
don Uinseann (dative definite singular)
Uinseann (mutation mutation-radical)
nUinseann (eclipsis mutation)
hUinseann (mutation prothesis-h)

/ˈɪn̠ʲʃən̪ˠ/

From Latin Vincentius, from vincēns (“conquering”), from the verb vincō. Cognate with, perhaps from or reinforced by French Vincent.

a male given name, equivalent to English Vincent


Beinidict

Beinidict (genitive)
Beinidict (mutation mutation-radical)
Bheinidict (lenition mutation)
mBeinidict (eclipsis mutation)

From Late Latin Benedictus, the name of several popes and saints, from Ecclesiastical Latin benedictus (“blessed”), perfect passive participle of benedīcō (“I speak well of, bless, praise”), from Latin bene (“well”) + dīcō (“I speak”).

der

a male given name, equivalent to English Benedict


Feardorcha

Fheardorcha (genitive)
Feardorcha (mutation mutation-radical)
Fheardorcha (lenition mutation)
bhFeardorcha (eclipsis mutation)

/ˈfʲaɾˠd̪ˠɔɾˠəxə/

a male given name, historically anglicized as Frederick, to which it is etymologically unrelated


Cathaoir

Chathaoir (genitive)
Cathaoir (mutation mutation-radical)
Chathaoir (lenition mutation)
gCathaoir (eclipsis mutation)


Muiris

Mhuiris (genitive)
Muiris (mutation mutation-radical)
Mhuiris (lenition mutation)

From Late Latin Mauritius, derived from Maurus (“Moor; dark, swarthy”).

a male given name from Latin, equivalent to English Maurice


Gearóid

Ghearóid (genitive)
Gearóid (mutation mutation-radical)
Ghearóid (lenition mutation)
nGearóid (eclipsis mutation)

From Old French Gerart, from Frankish *Gaiʀahard.

a male given name from Old French, equivalent to English Gerard


Gréagóir

From Latin Grēgorius, from post-classical Ancient Greek Γρηγόριος (Grēgórios, “watchful, vigilant”).

a male given name from Ancient Greek, equivalent to English Gregory


Stiofán

/ʃtʲəˈfˠɑːn̪ˠ/

/ˈʃtʲʊfˠɑːnˠ/

/ˈʃtʲʊfˠɑːn̪ˠ/

/ˈʃtʲʊfˠanˠ/

/ˈʃtʲʊfˠan̪ˠ/

From Latin Stephanus, from Ancient Greek Στέφανος (Stéphanos), assimilated to the suffix -án.

a male given name from Ancient Greek, equivalent to English Stephen


Dáithí

Dáithí (genitive)
Dáithí (mutation mutation-radical)
Dháithí (lenition mutation)
nDáithí (eclipsis mutation)

a male given name from Old Irish, may be used as the Irish form of David


Lorcán

a male given name, sometimes Anglicized as Laurence


Labhrás

a male given name, equivalent to English Laurence or Lawrence


Áiréilias

Áiréilias (genitive)
Áiréilias (mutation mutation-radical)
nÁiréilias (eclipsis mutation)
hÁiréilias (mutation prothesis-h)

/ɑːˈrʲeːlʲiəsˠ/

/ˈɑːrʲeːlʲiəsˠ/

a male given name from Latin, equivalent to English Aurelius


Marcas

Marcais (genitive)
Marcas (indefinite nominative singular)
a Mharcais (indefinite singular vocative)
Marcais (genitive indefinite singular)
Marcas (dative indefinite singular)
an Marcas (definite nominative singular)
an Mharcais (definite genitive singular)
leis an Marcas (dative definite singular)
don Mharcas (dative definite singular)
Marcas (mutation mutation-radical)
Mharcas (lenition mutation)

a male given name from Latin, equivalent to English Mark or Marcus


Dónall

Dónaill (genitive)
Dónall (indefinite nominative singular)
a Dhónaill (indefinite singular vocative)
Dónaill (genitive indefinite singular)
Dónall (dative indefinite singular)
an Dónall (definite nominative singular)
an Dónaill (definite genitive singular)
leis an Dónall (dative definite singular)
don Dónall (dative definite singular)
Dónall (mutation mutation-radical)
Dhónall (lenition mutation)
nDónall (eclipsis mutation)

/ˈd̪ˠoːn̪ˠəl̪ˠ/

/ˈd̪ˠuːnˠəl̪ˠ/

/ˈd̪ˠuːn̪ˠəl̪ˠ/

/ˈd̪ˠõːnˠəl̪ˠ/

/ˈd̪ˠõːn̪ˠəl̪ˠ/

From Old Irish Domnall, from Proto-Celtic *Dubnowalos.

a male given name from Proto-Celtic, equivalent to English Donald, sometimes Anglicized as Daniel


Rián

→ English: Ryan

From Old Irish Rián, from rí (“king”) + -án.

a male given name from Old Irish used rarely in Ireland


Maoldúin

→ English: Muldoon

/mˠeːl̪ˠˈd̪ˠuːnʲ/

/ˈmˠiːl̪ˠd̪ˠuːnʲ/

/ˈmˠiːl̪ˠd̪ˠunʲ/

maol + dúin.
From Old Irish Máel Dúin, from máel (“hillock”) + dúin (“fortress”).

(historical) a male given name from habitational


Dubhghall

Dubhghaill (genitive)
Dubhghall (mutation mutation-radical)
Dhubhghall (lenition mutation)
nDubhghall (eclipsis mutation)

→⇒ Yola: Deeule

Compound of dubh (“black, dark”) + gall (“stranger, foreigner”).

com+

a male given name, equivalent to English Dowell/Doyle/Dougal


Eochaidh

Eochadha (genitive)
Eochaidh (mutation mutation-radical)
nEochaidh (eclipsis mutation)
hEochaidh (mutation prothesis-h)

→⇒ English: McGaughey, Caughey

From Old Irish Eochaid, from ech (“horse”) (modern Irish each).


Parthalán

Pharthaláin (genitive)
Parthalán (indefinite nominative singular)
a Pharthaláin (indefinite singular vocative)
Parthaláin (genitive indefinite singular)
Parthalán (dative indefinite singular)
an Parthalán (definite nominative singular)
an Pharthaláin (definite genitive singular)
leis an bParthalán (dative definite singular)
don Pharthalán (dative definite singular)
Parthalán (mutation mutation-radical)
Pharthalán (lenition mutation)
bParthalán (eclipsis mutation)

/pˠɑɾˠhəˈl̪ˠɑːn̪ˠ/

/ˈpˠɑɾˠhəlˠɑːnˠ/

From Middle Irish Partholón, from Latin Bartholomaeus, from Ancient Greek Βαρθολομαῖος (Bartholomaîos), from Aramaic בר תלמי (bar tolmai, “son of Talmai; son of Ptolemy”); assimilated to the suffix -án.

der

Βαρθολομαῖος

a male given name from Aramaic, equivalent to English Bartholomew


Adhamhnán

Adhamhnáin (genitive)
Adhamhnán (indefinite nominative singular)
a Adhamhnáin (indefinite singular vocative)
Adhamhnáin (genitive indefinite singular)
Adhamhnán (dative indefinite singular)
an tAdhamhnán (definite nominative singular)
an Adhamhnáin (definite genitive singular)
leis an Adhamhnán (dative definite singular)
don Adhamhnán (dative definite singular)


Ceallach

Ceallaigh (genitive)
Ceallach (indefinite nominative singular)
a Ceallaigh (indefinite singular vocative)
Ceallaigh (genitive indefinite singular)
Ceallach (dative indefinite singular)
an Ceallach (definite nominative singular)
an Ceallaigh (definite genitive singular)
leis an Ceallach (dative definite singular)
don Ceallach (dative definite singular)
Ceallach (mutation mutation-radical)
Cheallach (lenition mutation)
gCeallach (eclipsis mutation)


Uilliam

Uilliam (genitive)
Uilliam (mutation mutation-radical)
nUilliam (eclipsis mutation)
hUilliam (mutation prothesis-h)

/ˈɨ̞l̠ʲiəmˠ/

From Middle Irish Uilliam, from Middle English William, from Anglo-Norman Willame, from Proto-Germanic *Wiljahelmaz.

a male given name from Proto-Germanic, equivalent to English William


Dochartach

Dochartaigh (genitive)
Dochartach (mutation mutation-radical)
Dhochartach (lenition mutation)
nDochartach (eclipsis mutation)

/ˈd̪ˠɔxəɾˠt̪ˠəx/

/ˈd̪ˠɔxəɾˠt̪ˠa(x)/

From dochar (“disadvantage, hurt, loss, injury, misery”) + -tach.


Toirdhealbhach

→ English: Turlough

Toirdhealbhach (mutation mutation-radical)
Thoirdhealbhach (lenition mutation)
dToirdhealbhach (eclipsis mutation)

/ˈtʲɾʲɛl̪ˠax/

Derived From Middle Irish Tairdelbach, from tairdelb (“promotion, furthering”), thus originally a by-name meaning “instigator”.

a male given name from Old Irish, often anglicized Turlough or Terence, the latter of which this name shares no etymological relation with.


Carthach

Carthaigh (genitive)
Carthach (mutation mutation-radical)
Charthach (lenition mutation)
gCarthach (eclipsis mutation)

From Primitive Irish ᚉᚐᚏᚏᚈᚈᚐᚉᚉ (carrttacc), from Proto-Celtic *Karatākos.


Deághadh

Deághaidh (genitive)
Deághadh (mutation mutation-radical)
Dheághadh (lenition mutation)
nDeághadh (eclipsis mutation)


Coileán

Choileáin (genitive)
Coileán (indefinite nominative singular)
a Choileáin (indefinite singular vocative)
Coileáin (genitive indefinite singular)
Coileán (dative indefinite singular)
an Coileán (definite nominative singular)
an Choileáin (definite genitive singular)
leis an gCoileán (dative definite singular)
don Choileán (dative definite singular)
Coileán (mutation mutation-radical)
Choileán (lenition mutation)
gCoileán (eclipsis mutation)

From Middle Irish Cuilén (literally “pup, youth, trickster”), from Old Irish cuilén (“pup, cub”), from Proto-Celtic *kolignos (“whelp”), possibly of non-Indo-European origin.

inh

a male given name often anglicized as Colin, which is etymologically unrelated


Aodhagán

Aodhagáin (genitive)
Aodhagán (mutation mutation-radical)
nAodhagán (eclipsis mutation)
hAodhagán (mutation prothesis-h)

From Old Irish Áedacán. By surface analysis, Aodh + -agán.


Faolán

Fhaoláin (genitive)
Faolán (indefinite nominative singular)
a Fhaoláin (indefinite singular vocative)
Faoláin (genitive indefinite singular)
Faolán (dative indefinite singular)
an Faolán (definite nominative singular)
an Fhaoláin (definite genitive singular)
leis an bhFaolán (dative definite singular)
don Fhaolán (dative definite singular)
Faolán (mutation mutation-radical)
Fhaolán (lenition mutation)
bhFaolán (eclipsis mutation)

From Old Irish Fáelán. By surface analysis, faol (“wolf”) + -án.


Fínín

From Old Irish Fíngin (literally “wine-born”), from fín (“wine”) + gein (“birth”).


Odhrán

Odhráin (genitive)
Odhrán (indefinite nominative singular)
a Odhráin (indefinite singular vocative)
Odhráin (genitive indefinite singular)
Odhrán (dative indefinite singular)
an Odhrán (definite nominative singular)
an Odhráin (definite genitive singular)
leis an Odhrán (dative definite singular)
don Odhrán (dative definite singular)
Odhrán (mutation mutation-radical)
nOdhrán (eclipsis mutation)
hOdhrán (mutation prothesis-h)

→ English: Odhran, Oran, Oren, Orin

Ó hOdhráin (surname)

→ English: Horan

/əuˈɾˠɑːn̪ˠ/

From Old Irish Odrán, originally from odur + -án. By surface analysis, odhar (“dun”) + -án (diminutive suffix).


Dubhghus

Dubhghusa (genitive)
Dubhghus (mutation mutation-radical)
Dhubhghus (lenition mutation)
nDubhghus (eclipsis mutation)

/ˈd̪ˠuːɣusˠ/

a male given name, equivalent to English Ducey


Brandubh

Branduibh (genitive)
Brandubh (mutation mutation-radical)
Bhrandubh (lenition mutation)
mBrandubh (eclipsis mutation)

a male given name, equivalent to English Braniff


Fearghal

Fearghail (genitive)
Fearghal (mutation mutation-radical)
Fhearghal (lenition mutation)
bhFearghal (eclipsis mutation)

a male given name from Old Irish of Gaelic origin


Cionaodh

Cionaodha (genitive)
Cionaodh (mutation mutation-radical)
Chionaodh (lenition mutation)
gCionaodh (eclipsis mutation)


Aodhán

Aodháin (genitive)
Aodhán (mutation mutation-radical)
nAodhán (eclipsis mutation)
hAodhán (mutation prothesis-h)

→ English: Aidan

→ Italian: Aidano

→ Portuguese: Áidano

→ Scots: Aidan

→ Welsh: Aidan

From Old Irish Aédán (whence also Scottish Gaelic Aodhan). By surface analysis, Aodh + -án.


Amhlaoibh

Amhlaoibh (genitive)
Amhlaoibh (mutation mutation-radical)
nAmhlaoibh (eclipsis mutation)
hAmhlaoibh (mutation prothesis-h)

From Old Irish Amlaíb, from Proto-Norse *ᚨᚾᚢᛚᚨᛁᛒᚨᛉ (*anulaibaʀ) (whence Old Norse Óláfr), from Proto-Germanic *Anulaibaz.

a male given name from Proto-Norse, equivalent to English Olaf, historically anglicized as Humphrey, with which it is etymologically unrelated


Conlaodh

Chonlaodh (genitive)
Conlaodh (mutation mutation-radical)
Chonlaodh (lenition mutation)
gConlaodh (eclipsis mutation)

a male given name from Old Irish, traditional spelling of Conlao


Conlao

Chonlao (genitive)
Conlao (mutation mutation-radical)
Chonlao (lenition mutation)
gConlao (eclipsis mutation)

English: Conleth


Laoghaire

→ English: Leary


Lúcás

From Old Irish Lúcas, from Latin Lūcās, from Ancient Greek Λουκᾶς (Loukâs). Cognate with Scottish Gaelic Lùcas.

a male given name from Ancient Greek, equivalent to English Lucas or Luke


Pilib

Pilib (genitive)
Pilib (indefinite nominative singular)
a Philib (indefinite singular vocative)
Pilib (genitive indefinite singular)
Pilib (dative indefinite singular)
an Pilib (definite nominative singular)
an Philib (definite genitive singular)
leis an bPilib (dative definite singular)
don Philib (dative definite singular)
Pilib (mutation mutation-radical)
Philib (lenition mutation)
bPilib (eclipsis mutation)

Borrowed from Ancient Greek Φίλιππος (Phílippos, “fond of horses”).

bor+

a male given name, equivalent to English Philip


Conghalach

Conghalaigh (genitive)
Conghalach (mutation mutation-radical)
Chonghalach (lenition mutation)
gConghalach (eclipsis mutation)

From Middle Irish Congalach, from congalach (“valiant, martial”) (whence the modern Irish literary term conghalach (“valorous”)).