Lewis & Short

ĭn-occĭdŭus, a, um, adj., never setting.

  1. I. Lit.: axis, the north pole, Luc. 8, 175.
  2. II. Transf.: visus, ever open eyes, Stat. Th. 6, 277: ignes, inextinguishable, Claud. Rapt. Pros. 3, 400: vita continua et inoccidua, Arn. 2, 68.