Lewis & Short

† ĕpĭnyctis, ĭdis, f., = ἐπινυκτίς.

  1. I. Night-blains, pustules that arise in the night, Plin. 20, 2, 6, § 12 (in Cels. 5, 28, 15, written as Greek).
  2. II. A kind of sore in the eyelid; also called syce, Plin. 20, 6, 21, § 44.