Mac Amhalghaidh variant forms of the name. A modern variant is Mac Amhalaí. Another is Mac Amhalaidh. Another variant is Mac Amhalghadha. Variant forms of "Mac Amhalghaidh" and "Mac Amhalghadha" include Mag Amhalghaidh and Mag Amhalghadha. "Mac Amhalghaidh" translates into English as "son of "Amhalghaidh"", or "son of "Amhalghadh"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. The personal name "Amhalghaidh", also spelt "Amhalghadh", is an old Gaelic name, and is of uncertain origin and meaning. "Mac Amhalghaidh" is a masculine surname. The form of this surname for unmarried females is
Kennedy (surname) Kennedy (surname) Kennedy, alternately O'Kennedy and Kennedie, is a surname of Irish and Scottish origin that has also been used as a given name. There have been several different etymologies given for the surname. One is that the name is an Anglicisation of "Ó Cinnéide", meaning "grandson of "Cinnédidh"" or "grandson of "Cinnéidigh"", with both of these personal names meaning "helmet headed." "Ceanéidigh" could be related to the old Gaelic name "Cennétig", which is known from Cennétig Mac Lorcáin, the father of the Irish high king "Brian mac Cennétig", who himself was also known as "Brian Bóruma" or Brian Boru.