Male first name (Italian, Spanish): Arturo, the bear, Celtic (Arthurian legend) = arth, the bear laid artus = (Latin), spread by the legend of King Arthur and his Round Table (6th century (?) ), the origin of the name is resolved not sure, perhaps of Celtic 'arth' (bear), a word which was Latinized as 'artos', perhaps from the Latin 'Arthur' (fixed)