CUNO.  Celtic name meaning "chief, lord; or king."

... Here we have a Belgico-Celtic word beyond all doubt, as konig, in the same sense, is still in use all over Germany...
    There are some remarks in the celebrated Edward Lhuyd's Correspondence on this name as printed in the Archaeologia Cambrensis for 1859, p. 248.  He says that "the ancient Britons and Romans expressed Kyn in British names by Cuno, and that towards the eighth century, both the Britons and Irish rendered it con."
    ... This title, CVNO, in fact, first appears connected with the name of Cunobeline (q.v.), and became disused in about five centuries, the last instance of it being in the name Cvneglas, in the History of Gildas, c. 32.  In short, the class of names to which Lhuyd appears to allude as Conmarch, etc., are composites of cyn in the signification of "head" or "chief," and not of the title CVNO... (Celtic Inscriptions on Gaulish & British Coins, Poste, 1861)