deartháir

Irish

Alternative forms

Etymology

PIE word
*dóru

PIE word
*bʰréh₂tēr

From Old Irish derbráthair,^[2] from derb (“certain”) + bráthair (“brother”), from Proto-Celtic *brātīr, from Proto-Indo-European *bʰréh₂tēr.

Pronunciation

(Munster)
- (Waterford) IPA^(key): /dʲɾʲəˈhaːɾˠ/ ~ /dʲeɾʲəˈhaːɾˠ/^[3]
- (Cork, Kerry) IPA^(key): /dʲɾʲəˈhaːɾʲ/ ~ /dʲɾʲəˈhɑːɾʲ/^[4]^[5]^[6]
(Connacht)
- (Aran) IPA^(key): /ˈdʲɾʲɑːhəɾʲ/^[7]
- (Cois Fharraige) IPA^(key): /ˈdʲɾʲɑːɾʲ/^[8]
- (Connemara, Tourmakeady, Erris) IPA^(key): /ˈdʲɾʲiçaːɾʲ/^[9]^[10]
- (Achill) IPA^(key): /ˈdʲaɾˠhaɾʲ/^[11]
(Ulster) IPA^(key): /ˈdʲaːɾˠhæɾʲ/^[12], /ˈdʲæːɾˠhɛɾʲ/, /ˈdʲɑːɾˠhəɾʲ/^[13], /ˈdʲaɾˠhəɾʲ/^[14]

Noun

deartháir m (genitive singular dearthár, nominative plural deartháireacha)

brother

Declension

Declension of deartháir (irregular)

bare forms
	singular	plural
nominative	deartháir	deartháireacha
vocative	a dheartháir	a dheartháireacha
genitive	dearthár	deartháireacha
dative	deartháir	deartháireacha

forms with the definite article
	singular	plural
nominative	an deartháir	na deartháireacha
genitive	an dearthár	na ndeartháireacha
dative	leis an deartháir don deartháir	leis na deartháireacha

Alternative plural: deartháracha (Cois Fharraige)

Coordinate terms

deirfiúr (“sister”)

Mutation

Mutated forms of *deartháir*
radical	lenition	eclipsis
deartháir	dheartháir	ndeartháir

Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.

References

^ “deartháir”, in Historical Irish Corpus, 1600–1926, Royal Irish Academy
^ Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “derbráthair”, in eDIL: Electronic Dictionary of the Irish Language
^ Breatnach, Risteard B. (1947), The Irish of Ring, Co. Waterford: A Phonetic Study, Dublin Institute for Advanced Studies, →ISBN, section 560, page 147
^ Ó Cuív, Brian (1968), The Irish of West Muskerry, Co. Cork: A Phonetic Study, Dublin Institute for Advanced Studies, →ISBN, section 280, page 98; reprinted 1988
^ Sjoestedt, M. L. (1938), Description d’un parler irlandais de Kerry [Description of an Irish Dialect of Kerry] (in French), Paris: Librairie Ancienne Honoré Champion, § 15, page 17
^ Ó Sé, Diarmuid (2000), Gaeilge Chorca Dhuibhne [The Irish of Corkaguiny] (in Irish), Institiúid Teangeolaíochta Éireann [Linguistics Institute of Ireland], →ISBN, section 240, page 113
^ Finck, F. N. (1899), Die araner mundart [The Aran Dialect] (in German), Zweiter Band: Wörterbuch [Second volume: Dictionary], Marburg: Elwert’sche Verlagsbuchhandlung, page 87
^ de Bhaldraithe, Tomás (1977), Gaeilge Chois Fhairrge: An Deilbhíocht [The Irish of Cois Fharraige: Accidence] (in Irish), 2nd edition, Institiúid Ard-Léinn Bhaile Átha Cliath [Dublin Institute for Advanced Studies], page 328
^ de Búrca, Seán (1958), The Irish of Tourmakeady, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, →ISBN, section 345, page 67
^ Mhac an Fhailigh, Éamonn (1968), The Irish of Erris, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, section 147, page 35
^ Stockman, Gerard (1974), The Irish of Achill, Co. Mayo (Studies in Irish Language and Literature, Department of Celtic, Q.U.B.; vol. 2), Institute of Irish Studies, The Queen’s University of Belfast, section 989, page 109
^ Quiggin, E. C. (1906), A Dialect of Donegal, Cambridge University Press, § 80, page 33
^ Wagner, Heinrich (1959), Gaeilge Theilinn: Foghraidheacht, Gramadach, Téacsanna [The Irish of Teelin: Phonetics, Grammar, Texts] (in Irish), Institiúid Ard-Léinn Bhaile Átha Cliath [Dublin Institute for Advanced Studies], § 445 B. (b), page 164; reprinted 1979
^ Lucas, Leslie W. (1979), Grammar of Ros Goill Irish Co. Donegal (Studies in Irish Language and Literature, Department of Celtic, Q.U.B.; vol. 5), Institute of Irish Studies, The Queen’s University of Belfast, page 253