McCown McCown McCown is a Gaelic-language surname with several possible etymological origins. There are several possible etymologies for the McCown surname. McCown and its multitude of spelling variants could originate from anglicised versions of the Gaelic names "Mac Eòghain", "Mac Eòin" or "Mac Còmhghan". McCown is a patronymic surname, the Gaelic "Mac" (or "Mc") meaning ""son of"" in English. Mac Eoghain is the most likely etymological origin for the surname McCown. The Gaelic name "Eòghan" translates into modern day English as Ewen or "Owen". The prefix of "Eo" in "Eoghan", is often pronounced "yew". This has caused many to translate Eoghan
Eolais mac Biobhsach manuscripts going back almost two hundred years. O'Donovan claimed the family name ( "descendent of Eolais") is still found anglicised as "Olus" or "Olis". two instances of the surname corrupted as "Oelase" and "Olase", are found in the Irish Fiants for Leinster. The surname must be very rare. Eolais mac Biobhsach Eolais "mac Biobhsach" (alias " "knowledge", anglicized "Wallis", "Olis" or "Olus" ) was a chieftain of 10th century Gaelic Ireland. He is noted as the first "full chieftain of Conmaicne Réin". His descendants, "the Muintir Eolais", expanded into the territory of present day south county Leitrim, and parts of