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MOORE Family History

Ó Mordha - anglicised Moore, earlier O' More, More etc, meaning -stately/majestic

De Móra - from Anglo-Norman De La More, meaning - at the moor/heath, a locative name.

Ó Mothair - anglicised Moher and Moore, meaning descendant of Mothar (Woulfe in 'Sloinnte Gaedheal is Gall' 1923, says this name means - dark).

To these must be added two Scottish names, given the high numbers in the north of Ireland ( see Griffith's below): viz.
Muir - lowland Scots for 'moor', and thus a locative name
Moir - Scots Gaelic for 'tall/big', an epithet or descriptive name.

The O' More sept were the chief sept of Laois. The ruins of their fortress at Dunmasse in that county can still be seen. Famous resisters of Norman, then English colonisation, they led the struggles of the native Irish, particularly through the terrible years of the16th and early17th centuries.
For their heroic resistance, the leading families were transplanted to Co Kerry.

De Móra, which is a Gaelicisation of a Norman family name, was established in medieval times in Munster and Connacht. It's later anglicisation as Moore makes it difficult to distinguish from the Gaelic Moores.

The Ó Mothair sept were an old Cork family, which, Woulfe says, has become very rare. However, this may be because it has been absorbed by the anglicised form, Moore, which is taken to most often represent Ó Mordha.

In Petty's 1659 'Census' the name Mahur is given as a Principal Irish Name in Clonlisk Barony, Offaly, and registered with 26 families. Whilst in Laois in Maryborough Barony and Cullenagh Barony Moore is represented as a Principal Irish Name with 11 families apiece. Ditto in Sliemargheagh Barony, Moore appears again, and again in Ballyadams Barony with 9 families. Moore appears as a P.I.N. again in Portnyhinch Barony. All these in Laois, homeland of Ó Mordha!

By the mid 19th century Griffith's 'Primary Valuation' of property, the counties where most Moore households occurred were: Antrim (534) Down (404) Laois (290) Tyrone (237) Dublin (233) Derry (199)

The name More (as in St Thomas More) is also an English name, which occurs as Moor(e). The usual derivation is local, i.e. from the 'moor', or, via France, an epithet type name from 'Moor' as in North African, and meaning 'dark, swarthy'.

Two famous Moores:
Rory O' More was the indefatigable opponent of Queen Mary and Queen Elizabeth in the 16th century, and defeated the English invaders on several occasions.
Alfred Moore (1755-1810) a hero of the American Revolutionary War, and a descendant of Roger Moore, a hero of the Irish Rebellion of 1641... so that's three for the price of two!

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Anthony Barrett

(Part 1 of 3) The Moore name has a long history in the British Isles, but now DNA and some recorded history says its origin is from the north-west region of the Emerald Island. The Moore story [dominated by DNA tribal marker R1b-L513, Subgroup D2] can trace their beginnings to the Finn Valley in Donegal, Ireland from 50 BCE. Perhaps the journey begins with the Clanna Dedad; Deda, son of Sen or Deda Mac Sin. The Moore surname origin is from the Cenél Conaill [R1b-L513, Subgroup D] who found the Dál Fiatach.

Anthony Barrett

(Part 2 of 3) A group will also found the Kingdom of Ercing in Wales as trade with Romans will become essential around 300 CE. But how could this be? Recent discoveries from DNA testing are unlocking the migration patterns of Celtic tribes as late as 800 CE to 1200 CE. The Moore story begins in pre-history Ireland but this line and many of his kin will move to Wales, then travel to Brittany, France during the Dark Ages.

Anthony Barrett

(Part 3 of 3) Discover their newly found untold story and how forgotten texts bring their story back to life. From the ebook, “The Tribe Within” learn how DNA unfolds this amazing tale and if you look in the right places, how history narrates this evidence. There is another written account of their story, but it is camouflaged in smoke and myth – it will become the tales of King Arthur. Come follow in the footsteps of Deda Mac Sin and visit

Sabrann An Bheatha

im located in Belfast Ireland

Alvin William Moore

Looking for O'Mores (Leix) who would be willing to have their DNA tested, fee paid. Or O'Mores who have already done so. Alvin William Moore


I am looking for some of my family anyone related to robert moore in ocoee florida?


My location listed is North Carolina, USA. Which is incorrect. I am located in Southwest Missouri, USA. Near Joplin.

Moore 8 day Down tour
€989 - 3 Nights | 5 Star
8 day tour of Down Find out more »
Moore 8 day Kerry tour
€989 - 3 Nights | 5 Star
8 day tour of Kerry Find out more »
Moore 4 day Laois tour
€989 - 3 Nights | 5 Star
Tour of Laois for Moore Find out more »
Areas of Origin for MOORE

Leinster , Ireland

Munster , Ireland

Ulster , Ireland

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