Lewis & Short

Cĕvenna (also Cĕbenna and Gĕ-benna), ae, f., a mountain in Gallia, now Cevennes, Caes. B. G. 7, 8; 7, 56; Luc. 1, 434.
The same: Cebennici or Gebennici montes, Mel. 2, 5, 1; 2, 5, 6.