O'Dea (/oʊˈdiː/ oh-DEE; Irish: Ó Deághaidh, formerly Ua Deághaidh), is an Irish surname derived from Deághaidh, the name of a tenth-century clan chieftain.[1] According to historian C. Thomas Cairney, the O'Deas were one of the chiefly families of the Dal gCais or Dalcassians who were a tribe of the Erainn who were the second wave of Celts to settle in Ireland between about 500 and 100 BC.[2]
O'Dea clan origins
[edit]The O'Dea clan, also found as O'Day or just Day, came originally from County Clare in Ireland where there is a fortified tower house over 500 years old known as O'Dea Castle[3] at the 80-acre (320,000 m2) townland of Dysert O'Dea (Irish: Dísert, meaning 'hermitage').[4] The ruins of the Dysert O'Dea Monastery, round tower, and St. Tola's high cross are 265 metres to the south-southwest of the castle in the adjacent 260-acre (1.1 km2) townland of Mollaneen (Irish: Molainín, meaning 'the little hill'),[5] near Corofin.[6] (52°54′41″N 9°03′59″W / 52.911361°N 9.066381°W)
Edward MacLysaght, the former Chief Herald of Ireland, writing in his book, Irish Families, began his discussion of the O'Dea family as follows:
O'Dea is a name associated alike in the past and at present almost exclusively with the County Clare and the areas such as Limerick City and North Tipperary which immediately adjoin it. It is not a common name anywhere and even in County Clare is not numerous outside the part of the county where it originated. This is indicated by the place names Tully O'Dea and Dysart O'Dea, the site of a famous battle in 1318. The head of the sept was chief of a considerable territory comprising much of the barony of Inchiquin. In Irish the name is Ó Deághaidh.[7]
In another book, The Surnames of Ireland, MacLysaght describes the O'Deas as "one of the principal Dalcassian septs", and about the name itself, he remarks, "The prefix O is now almost always used, but a century ago Dea was quite usual and the surname Day was regarded as synonymous."[8]
Ancestry
[edit]The O'Deas – together with the O'Quinns (Irish: Ó Cuinn) and the O'Griffins (Irish: Ó Gríofa) – belonged to the Uí Fearmaic group, which was a branch of the Dalcassian tribe.[9]
Notable O'Deas
[edit]- Sean O'Dea - American Father
- Addison O'Dea – American documentary filmmaker
- Ann O'Dea – Irish journalist and businesswoman
- Ben O'Dea – New Zealand beach volleyball player
- Bob O'Dea – New Zealand rugby player
- Brian O'Dea – Canadian smuggler and author
- Cornelius O'Dea – Irish bishop
- Danny O'Dea – British actor
- Darrell O'Dea – Canadian musician and recording engineer
- Darren O'Dea – Irish football manager and player
- Denis O'Dea – Irish actor
- Donnacha O'Dea – Irish Olympic swimmer and professional poker player
- Ebony O'Dea – Australian rules football player
- Edward John O'Dea – American bishop
- Ernest Charles O'Dea – Australian politician and union official
- Fabian O'Dea – Lieutenant Governor of Newfoundland, Canada
- Jane Skiles O'Dea – American navy officer
- Jim O'Dea – Australian rules football player
- Jimmy O'Dea – Irish actor and comedian
- John O'Dea – American Civil War soldier
- John R. O'Dea – Canadian businessman and politician
- Jonathan O'Dea – Australian politician
- Judith O'Dea – American film actress
- Ken O'Dea – American baseball player
- Kevin O'Dea – American football coach
- Larry O'Dea – Australian wrestler and promoter
- Louis O'Dea – Irish politician
- Luke O'Dea – Irish rugby player
- Luke O'Dea – Australian football player
- Mark O'Dea – British television presenter
- Michael O'Dea – Irish politician
- Michael O'Dea – Australian politician
- Mick O'Dea – Irish painter
- Pat O'Dea – Australian and American football player and coach
- Patrick O'Dea – New Zealand civil servant
- Paul O'Dea – American basketball player
- Richard W. O'Dea - American politician
- Stephanie O'Dea – American food and lifestyle writer
- Steve O'Dea – Australian rugby player
- Terry O'Dea – Australian darts player
- Thomas O'Dea – Irish bishop
- Tom O'Dea – American attorney and politician
- Trent O'Dea – Australian volleyball player
- Willie O'Dea – Irish politician
See also
[edit]- O'Dea Castle
- Dysert O'Dea Monastery
- Battle of Dysert O'Dea
- Day surname
- O'Day surname
- Pre-Norman invasion Irish Celtic kinship groups, from whom many of the modern Irish surnames came from
References
[edit]- ^ Cathréim Cellacháin Caisil, Alexander Bugge, page 88, https://archive.org/details/caithreimcellach00norsuoft/page/88/mode/2up
- ^ Cairney, C. Thomas (1989). Clans and Families of Ireland and Scotland. Jefferson, North Carolina, United States, and London: McFarland & Company. pp. 61–69. ISBN 0899503624.
- ^ Dysart O'Dea Castle, Co. Clare by Risteard Ua Croinin and Martin Breen, The Other Clare, Volume 9, page 17. Shannon Archaeological and Historical Society, April 1985.
- ^ Dysert townland at the Irish Placenames Database, logainm.ie. Retrieved 3 August 2010.
- ^ Mollaneen townland at the Irish Placenames Database, logainm.ie. Retrieved 3 August 2010.
- ^ Map of Dysert and Mollaneen at Ordnance Survey Ireland Archived 29 August 2012 at the Wayback Machine. Select Historic 6" option to see old townland boundaries. maps.osi.ie. Retrieved 3 August 2010.
- ^ Irish Families: Their Names, Arms and Origins, by Edward MacLysaght. Dublin: Hodges Figgis 1957, rev. 1972, page 112.
- ^ Surnames of Ireland, by Edward MacLysaght. Shannon: Irish UP 1969.
- ^ O'Laughlin, Michael C. (21 March 2024). Families of County Clare Ireland. Irish Genealogical Foundation. ISBN 978-0940134980.
Further reading
[edit]- O'Dea: Ua Deághaidh: The Story of a Rebel Clan, by Risteárd Ua Cróinín (Richard Cronin), Ballinakella Press, Whitegate, Co. Clare, Ireland, 1992. ISBN 0-946538-07-7.
- Irish Battles – A Military History of Ireland, by G.A. Hayes-McCoy, Appletree Press, 1990, ISBN 0-86281-250-X
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