Mac Raghnaill some are of Irish origin, others of Scottish origin, some are of English origin, and some may be of Norwegian and or Danish origin. Mac Raghnaill Mac Raghnaill is masculine surname in the Irish language. The name translates into English as "son of "Raghnall"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. The name "Raghnall" is a Gaelic derivative of the Old Norse personal name "Røgnvaldr" / "Rǫgnvaldr" / "Rögnvaldr". Variant forms of the surname include Mac Rághnaill and Mac Raonaill. These three surnames can be Anglicised variously as:
McKinley (surname) nickname given the deposed MacDunleavy dynasty royals while exiled in Tirconnell and elsewhere. Being, also, one of Ireland's ancient hereditary medical families, the MacDunleavy (variant English spelling MacDonlevy) were in Tirconnell accorded the high Gaelic status of "ollahm leighis" or the official physicians to the O'Donnell clan in County Donegal and practiced as physicians while exiled in Argyll, Scotland. The nickname was Mac an Leigh. Per this scenario the Gaelic language patronymic forming prefix "Mac" (meaning "descended of") is joined to the Gaelic language "Léigh" meaning leech, but denoting a physician. Leeching (medical) having been for millennia, in Gaelic Ireland