Ó Muirgheasáin
Ó MUIRGHEASÁIN—I—O Murghesan, O Morrisane, O Morrison, O Brisane, Morrison, Briceson, Bryson, (Price); 'descendant of Muirgheasán' (diminutive of Muirgheas); an old Donegal surname; pronounced Ó Bríosáin and anglicised Briceson and Bryson. In Co. Mayo, the pronunciation is Ó Príosáin, anglicised Price.
Alphabetical Index to Irish Surnames