Show ContentsCeusitch History, Family Crest & Coats of Arms

When the Anglo-Normans began to settle in Ireland, they brought the tradition of local surnames to an island which already had a Gaelic naming system of hereditary surnames established. Unlike the Irish, the Anglo-Normans had an affinity for local surnames. Local surnames, such as Ceusitch, were formed from the name of a place or a geographical landmark. Often, these place names were prefixed by "de," which means "from" in French: in later years, the prefix sometimes became joined to the name, or was sometimes dropped. The Ceusitch family name is thought to have come from any of several places named Cussac in France; such as Cussac in Guienne (Guyenne), Cussac in Limousin, or from Cussac in Auvergne. These place names are thought to derive from Cucius or Cussius, a Romano-Gallic personal name, along with the suffix "-acum." After the name came to Ireland, it took on the Gaelic form Ciomhsóg. However, in the county of Clare, the Gaelic form of the name is Mac Iosóg.

Early Origins of the Ceusitch family

The surname Ceusitch was first found in County Meath (Irish: An Mhí) anciently part of the kingdom of Brega, located in Eastern Ireland, in the province of Leinster, where Jeoffrey Le Cusack was first recorded. He was named after a town of that name in France and came to Ireland shortly after the English invasion. Adam Cusack, his grandson "slew William Barret and his brothers in Connaught, on account of a quarrel about lands " in 1282. 1

Walter de Cusack (c.1270- 1334) was an Anglo-Irish judge, magnate and military commander of the fourteenth century. He was a younger son of Sir Andrew Cusack of Gerrardstown, County Meath. Nicholas Cusack, Bishop of Kildare (1279-1299), was a cousin.

Another reference has a slightly different twist on the origin in France. In this reference, the name "is derived from a place in Guienne, France, and was first anglicized as de Cussac." 2 Whichever origin is true, the occurrence of the name in England was indeed rare.

Early History of the Ceusitch family

This web page shows only a small excerpt of our Ceusitch research. Another 194 words (14 lines of text) covering the years 1211, 1280, 1300, 1409, 1415, 1490, 1496, 1541, 1542, 1550, 1551, 1571, 1687, 1770, 1788 and 1861 are included under the topic Early Ceusitch History in all our PDF Extended History products and printed products wherever possible.

Ceusitch Spelling Variations

Medieval scribes and church officials spelled the names as they sounded, so a name was often spelled many different ways during the lifetime of a single person. The investigation of the origin of the name Ceusitch revealed many spelling variations including Cusack, Cusacke, Cussack, Cossack, Cosack, Cewsack, Ceusack, Cowsack, Coussack, Cussach, Cussache, Cussoch, Coussack, M'Cusack, Cussick and many more.

Early Notables of the Ceusitch family

Notable amongst the family up to this time was Thomas Cusack was Mayor of Dublin in 1409; and Sir Thomas Cusack, who fought as a lancer at the Battle of Agincourt in 1415.Thomas Cusack, Cusack or de Cusack (died c.1496) was an Irish barrister and judge who held the offices of Attorney General for Ireland and Lord Chief Justice of Ireland. Sir Thomas Cusack (1490-1571) was Lord...
Another 66 words (5 lines of text) are included under the topic Early Ceusitch Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Ceusitch family

The Irish emigration during the late 18th and 19th century contributed to the melting pot of nationalities in North America, and the building of a whole new era of industry and commerce in what was seen as a rich, new land. Ireland'sGreat Potato Famine resulted in the worst economic and social conditions in the island's history. And in response to the hunger, disease, and poverty, during this decade the total number of emigrants to leave for North America rivaled all the previous years combined. Those from this decade that arrived on North American shores were not warmly welcomed by the established population, but they were vital to the rapid development of the industry, agriculture, and infrastructure of the infant nations of the United States and what would become Canada. Research into early immigration and passenger lists has shown many people bearing the name Ceusitch: Christopher Cusack who settled in Philadelphia, Pennsylvania in 1830; Betsey Cusack settled in Boston Massachusetts in 1849; Pat Cusack settled in Canada in 1839.



  1. O'Hart, John, Irish Pedigrees 5th Edition in 2 Volumes. Baltimore: Genealogical Publishing Company, 1976. Print. (ISBN 0-8063-0737-4)
  2. MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)


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