στιλβηδών
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English (LSJ)
όνος, ἡ,
A brilliance, brightness, polish, σ. δέχεται Thphr.HP5.4.2. 2 flashing, [ὀφθαλμῶν] Phld.Ir. p.5 W.(pl.); of stars, twinkling, Simp.in Cael. 453.21; τῶν ὁρώντων ὀφθαλμῶν σ., as expl. of St. Elmo's Fire, Placit.2.18.2.