The name is derived from the Gaelic lios mor, " great garden."
Neill Mor's great-greatgrandson, Henry O'Neill, was created baronet of Killeleagh in 1666.
Through an elder line from Neill Mor was descended Brian Mac Phelim O'Neill, who was treacherously seized in 1573 by the earl of Essex, whom he was hospitably entertaining, and executed together with his wife and brother, some two hundred of his clan being at the same time massacred by the orders of Essex.
The .modern "balm of Gilead" or "Mecca balsam," an aromatic gum produced by the Balsamodendron opobalsamum, is more likely the Hebrew mor, which the English Bible wrongly renders "myrrh."
This page gives an overview of all articles in the 1911 Brittanica which are alphabetized under Moo to Mor.