Hachett History, Family Crest & Coats of Arms
The Strongbownians added their own naming traditions to the eastern region of Ireland to which they arrived. The impact of this new tradition was not extremely disruptive to the pre-existing Irish tradition because the two had many similarities. Both cultures made significant use of hereditary surnames. And like the Irish, the Strongbownians often used prefixes to build patronymic surnames, which are names based on the given name of the initial bearer's father or another older relative. Strongbow's followers often created names that were built with the prefix Fitz-, which was derived from the French word fils, and ultimately from the Latin filius, both of which mean son. They also used diminutive suffixes such as -ot, -et, -un, -in, or -el, and occasionally even two suffixes combined to form a double diminutive such as -el-in, -el-ot, -in-ot, and -et-in, to build patronymic names. The surname Hachett is derived from the medieval given names Hack or Hake. These English names were derived from the Old Norse name Haki, which is a cognate of the English name Hook and was originally given to someone with a hunched figure or a hooked nose. Before being imported to Ireland, the surname Hachett was chiefly popular in the western midlands of England. The Gaelic form of the name Hachett is Haicéid.
Early Origins of the Hachett family
The surname Hachett was first found in County Kilkenny (Irish: Cill Chainnigh), the former Kingdom of Osraige (Ossory), located in Southeastern Ireland in the province of Leinster, where they had been granted lands by Strongbow for their assistance in the invasion of Ireland in 1172.
They were also granted lands in counties Carlow, Kildare and one branch moved into Connacht where "they formed a distinct if small sept which was known as MacHackett, their seat being Castle Hackett, six miles south-east of Tuam." 
They were originally from Harcourt in Normandy and their name appears on the Honour Roll of the Battell Abbey as being present at the Battle of Hastings. "The Hackets of Niton on the Isle of Wight were descendants of Haket on the Battle Abbey Roll. The eventual heiress, Agnes, dau. of John Hackett, Esq. of Niton, m. John Lye, Esq., of Dorsetshire, and was mother of Anne Lye, wife of Sir James Woraley, constable of Carisbrook Castle." 
"Dominus Paganus de Haket, another soldier at Hastings accompanied Henry II to Ireland where he acquired broad lands and seigneuries there; and his descendants, generation after generation, were parliamentary Barons, and potent Magnates in the sister kingdom. "
Early History of the Hachett family
This web page shows only a small excerpt of our Hachett research. Another 54 words (4 lines of text) covering the years 1180, 1195, 1676, 1601, 1625, 1626, 1566, 1592, 1670, 1592, 1559 and 1621 are included under the topic Early Hachett History in all our PDF Extended History products and printed products wherever possible.
Hachett Spelling Variations
Since church officials and medieval scribes spelt each name as it sounded to them; as a result, a single person could accumulate many different versions of his name within official records. A close examination of the origins of the name Hachett revealed the following spelling variations: Hackett, Hackert, Hacket, Halkett and others.
Early Notables of the Hachett family (pre 1700)
Notable amongst the family up to this time was Peter Hackett, Archbishop of Cashell; John-Baptist Hackett (Hacket, Hacquet, Hecquet) (died 1676), Irish theologian born at Fethard, County Tipperary; and Humphrey Haggett (born 1601), an English politician who sat in the House of Commons in 1625 and 1626.
John Securis (fl. 1566) was a medical writer, born in England. His name was a Latinized version of the surname Hatchett. 
John Hacket (1592-1670), was Bishop...
Migration of the Hachett family
Ireland's Great Potato Famine left the country's inhabitants in extreme poverty and starvation. Many families left their homeland for North America for the promise of work, freedom and land ownership. Although the Irish were not free of economic and racial discrimination in North America, they did contribute greatly to the rapid development of bridges, canals, roads, and railways. Eventually, they would be accepted in other areas such as commerce, education, and the arts. An examination of immigration and passenger lists revealed many bearing the name Hachett: Sir Robert Hacket settled in Barbados in 1678; Thomas Hackett settled in Virginia in 1642; William Hackett settled in Barbados in 1680; Bernard, Daniel, Francis, James, Michael.
The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.
Motto: Spes mea Deus
Motto Translation: God is my hope.