lūcesco and lūcisco, ĕre
* V. inch. n. [luceo], to begin to shine.
* Lit.
* In gen.: sol lucescit,Verg. E. 6, 37: quorum caput flavo capillorum crine lucescat, Firm. Math. 4, 13.
* Trop.: luciscens amor,bright,Front. ad Anton. 1, 5 Mai.
* Impers.: lucescit or luciscit, the day is breaking: eamus, Amphitruo: luciscit hoc jam, it is getting light there (in the sky), Plaut. Am. 1, 3, 45; Ter. Heaut. 3, 1, 1; v. luceo, I. A. fin.: cum lucisceret, as soon as it grew light, at break of day, *Cic. Fam. 15, 4, 8: et jam lucescebat,Liv. 4, 28.

s. TLL