Origin of the Name Hennessy
The origin of the name Hennessy
was found in the allfamilycrests.com archives.
Over the centuries Surnames developed a wide number of variants. Different spellings of the same name can be traced back to an original root. Additionally when a bearer of a name emigrated it was not uncommon that their original name would be incorrectly transcribed in the record books at their new location. Surnames were also often altered over the years based on how they sounded phonetically and depending on the prevailing political conditions it may have been advantageous to change a name from one language to another.
Variants of the name Hennessy
include O'Hennessy, Henchy and Ennis. Hennessy is a name from which the prefix O has been entirely dropped in modern times, though O'Hennessy was still widely used in the seventeenth century. In Irish the name is O'hAonghusa, meaning 'descendant of Aonghus'. The principal sept of this name was located near the town of Kilbeggan and the hill of Croghan, their territory being chiefly in the northern part of County Offaly, where they shared with O'Holohan the lordship of Clan Cholgain. A branch of these were located nearer to Dublin , the head of it being Chief of Gailenga Beg on the north side of the River Liffey on the borders of Counties Meath and Dublin . Another distinct sept of O'Hennessy was of Corca Laoidhe, located near Ross Bay in South-west Cork . In modern times the name is associated with Counties Cork , Limerick and Tipperary. The variant Ennis was formerly O'Hennis and was also sometimes rendered as Ennos or Enos.
The Hennessy coat of arms came into existence centuries ago. The process of creating coats of arms (also often called family crests) began in the eleventh century although a form of Proto-Heraldry may have existed in some countries prior to this. The new art of Heraldry made it possible for families and even individual family members to have their very own coat of arms, including all Hennessy descendants.