Lewis & Short

incŭbātĭo, ōnis, f. [incubo], a lying upon eggs (in order to hatch them), a brooding, incubation.

  1. I. Lit.: incubationi datur initium post novam lunam, Plin. 10, 54, 75, § 152: noxia ovis, id. 10, 56, 77, § 156: derelicta, id. 10, 60, 80, § 166.
  2. II. Trop., an unlawful possession: diuturna, Cod. Th. 10. 1, 15; id. Just. 7, 38, 3.