Fergus mac Róich
Kerry ( or in the original pre-Irish language reform spelling "Ciarraighe") means the "people of Ciar" which was the name of the pre-Gaelic tribe who lived in part of the present county. The legendary founder of the tribe was Ciar, son of Fergus mac Róich. In Old Irish "Ciar" meant black or dark brown, and the word continues in use in modern Irish as an adjective describing a dark complexion. The suffix "raighe", meaning "people/tribe", is found in various "-ry" place names in Ireland, such as "Osry"—"Osraighe" "Deer-People/Tribe". The county's nickname is "the Kingdom".