Lewis & Short

Carni, ōrum, m., a Celtic people in Upper Italy, east of Aquileia, extending to Cärnthen, now Krain, Mel. 2, 4, 2; Plin. 3, 18, 22, § 127; Inscr. Orell. 4040; their chief town was Carnūs, untis, Liv. 43, 1, 2.
Hence, Carnĭcus, a, um: Alpes, the Carnic Alps, Plin. 3, 25, 28, § 147.