Lewis & Short

clāresco, clārui, 2, v. inch. n. [clareo] (poet. or in post-Aug. prose), to become or grow bright or clear.

  1. I. Prop.
    1. A. Of the sight, to begin to shine, become visible: tecta luminibus clarescunt, Tac. A. 15, 37: clarescit dies, Sen. Herc. Fur. 123; Val. Fl. 7, 3; cf. Claud. Nupt. Hon. et Mar. 185 al.
    2. B. Of the hearing, to sound clear, to become audible: clarescunt sonitus armorum, Verg. A. 2, 301: tibiae, Quint. 1, 11, 7: vox, Gabius Bassus ap. Gell. 5, 7, 2.
  2. II. Trop.
    1. A. To become clear, manifest, evident, obvious: alid ex alio clarescet, Lucr. 1, 1115; 5, 1456: verba ipso materiae nitore clarescunt, Quint. 3, 8, 61; 8, 5, 19; 6, 4, 9; Macr. Somn. Scip. 2, 12.
    2. B. In character, to become illustrious, famous, renowned (poet. and in post-Aug. prose): aliud clarescit et e contemptibus exit, Lucr. 5, 833 Lachm. N. cr.: quoquo facinore clarescere, Tac. A. 4, 52: magnis inimicitiis, id. H. 2, 53: quia facilius inter ancipitia clarescunt, id. G. 14; id. Or. 36; Claud. C. Mall. Theod. 3: ex gente Domitiā duae familiae claruerunt, Suet. Ner. 1; cf. id. Gram. 17; Just. 2, 1.