Mac Ospaic Mac Ospaic Mac Ospaic is masculine surname in the Irish language. The name translates into English as "son of "Ospac"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. There are specific forms of the surname that are borne by married and unmarried females. There is at least one Anglicised form of the surname. "Mac Ospaic" translates into English as "son of "Ospac"". The surname originated as a patronym, however it no longer refers to the actual name of the bearer's father. The name "Ospac" is a Gaelic derivative of
Kavanagh (surname) common being: "Kavanagh", "Cavanagh", "Kavanaugh" and "Cavanaugh". The surname was possibly adopted by Síl Fáelchán clansmen in preference to the earlier name "MacMurrough", given the prestige associated with the dynamic junior line that seized the chiefship of the Uí Cheinnselaig tribal group in the High Middle Ages. Kavanagh (surname) Kavanagh or Kavanaugh is a surname of Irish origin, Caomhánach in Irish Gaelic. It is properly "Mac Murchadha Caomhánach" (an example of an Irish agnomen; see "Ó Catharnaigh Sionnach" or Fox of Fir Teathbha), but is often now rendered 'Caomhánach' or rarely 'Ó Caomhánaigh'. "Kavanagh" and "Kavanaugh" are anglicised variations of