Conchobhar (Anglicized "Conor," and Latinized "Conquovarus" and "Cornelius,") became a sirname, as in the family of the O'Conors, kings of Connaught, and others of that name in Ireland.  This name is also derived from "Cu" or "Con," and "Cobhair," aid; signifying the helping warrior.
    Wherever "Cu," a hound, commences the name of any chief, it means, figuratively, a swift-footed warrior; as "Cuchonnacht," which signifies the warrior of Connaught; "Cuchullain," a famous warrior of the Red Branch Knights of Ulster:  as Ulladh or Ulster is sometimes inflected "Ullain"; "Cu-Ulladh" means the warrior of Ulster; "Cu-Midhe," the warrior of Meath, &c.  "Cuchonnacht" was a favourite name of the Maguires, princes of Fermanagh; and has been Anglicized "Conor," and "Constantine." (Irish Pedigrees; or, The Origin and Stem of the Irish Nation, O'Hart, 1892).