φαιδρότης
From LSJ
συνετῶν μὲν ἀνδρῶν, πρὶν γενέσθαι τὰ δυσχερῆ, προνοῆσαι ὅπως μὴ γένηται· ἀνδρείων δέ, γενόμενα εὖ θέσθαι → it is the part of prudent men, before difficulties arise, to provide against their arising; and of courageous men to deal with them when they have arisen
English (LSJ)
ητος, ἡ,
A brightness, brilliance, ὀφθαλμῶν Poll.6.199; λίθων Lib.Or.11.89, cf. 221. 2 metaph., joyousness, Isoc.15.133, Plu.2.595d.
German (Pape)
[Seite 1250] ητος, ἡ, 1) Reinheit, Klarheit, Glanz. – 2) übertr., Heiterkeit, Fröhlichkeit, Isocr. 15, 133.