λαμπρότης · lamprotēs — LSJ
brilliancy, splendour, λ. καὶ τάξις τοῦ στρατεύματος X. An. 1.2.18; of a horse, Id. Eq. 11.9; of arms, Plb. 11.9.1, Arr. An. 1.14.4.
clearness, distinctness, Plu. Phil. 11.
metaph., brilliancy, splendour, Hdt. 2.101; ἡ παραυτίκα λ. Th. 2.64, cf. 7.69; ἀπὸ οἵας λαμπρότητος . . ἐς οἵαν . . τελευτὴν ἀφῖκτο Id. 7.75, cf. 6.31: pl., distinctions, τιμαὶ καὶ λ. Id. 4.62; ἔν τινος λαμπρότητι in distinction for a thing, Id. 6.16; λ. τῶν πράξεων D.S. 16.66, cf. Arr. An. 2.7.7.
munificence, D. 21.158.
brilliancy of style, Plu. Aud.poet. 2.25b; λαμπρότητες τοῦ λόγου, Lat. lumina orationis, Philostr. VS 1.23.2.
λ. ψυχῆς magnanimity, Plb. 32.8.1, D.S. 4.40.
as a title, ἡ σὴ λ. your Serenity, Serene Highness, PGrenf. 1.59 (v/vi A. D.).