4. _Dal_, tribe, descendants, as _Dal-Riada_, _Dal-Araidhe_, _Dal-g-cais_, _Dal Mesincorb_, &c. This word has been explained by the venerable Bede, and from him by Cormac Mac Cullenan, archbishop of Cashel, as signifying _part_ or _portion_ in the Scottic language; but from the manner in which it is used in Irish genealogies, this would appear to be but a secondary and figurative meaning. O’Flaherty seems to doubt that this word could be properly translated _part_; but Charles O’Conor, who gave much consideration to the subject, writes in a note to Ogygia Vindicated, p. 175, “that _dal_ properly signifies posterity, _or descent by blood_; but in an enlarged and figurative sense it signifies a district, that is, the division or part allotted to such posterity: that of this double sense we have numberless instances, and that in this _second sense_ Bede’s interpretation is doubtlessly admissible.” 5. _Muintir_, family, people; as _Muintir Murchadha_, the tribe name which the O’Flahertys bore before the establishment of surnames. 6. _Siol_, seed, progeny; as _Siol Aodha_, seed of Hugh, the tribe name of a branch of the Mac Namaras in Thomond; _Siol Maoluidhir_, the progeny of Maeleer, a great tribe in Leinster, who gave name to the territory of Shelmalier, in the county of Wexford. 7. _Tealach_, family; as _Telach Eathach_, the family of Eochy, the tribe name of the Magaurans in Breffney. 8. _Sliocht_, posterity; as _Sliocht Aodha Slaine_, the progeny of King Hugh Slany in Meath. 9. _Ua_, grandson, descendant; nominative plural, _ui_; dative or ablative, _uibh_. This prefix in its upright uninflected form appears in the names of Irish tribes oftener than any of the other seven. Some ignorant Irish scribes have supposed that it signifies a region or country, and some of the modern transcribers of Keating’s History of Ireland have taken the liberty to corrupt it to _aoibh_, a form not to be found in any ancient or correct MS. In support of the meaning above given may be adduced the high authority of Adamnan, abbot of Iona in the 7th century, who, in his life of his predecessor St Columbkille, invariably renders _ua_, _ui_, _uibh_, _nepos_, _nepotes_, _nepotibus_, in conformity with his habitual substitution of Latin equivalents for Irish tribe names, as often as he found it practicable. Thus, in the 16th chapter of the second book, he renders _Ua Briuin_, _nepos Briuni_; in the 5th chapter of the third book he translates _Ua Ainmirech_, _nepos Ainmirech_; in the 17th chapter of the same book he translates _Ua Liathain_, _nepos Liathain_; in the 49th chapter of the first book he renders _Ui Neill_, _nepotes Nelli_, i.e., the race of Niall; and in the 22d chapter of the same book he translates _Ui Tuirtre_, _nepotes Tuitre_.