λαμπροφωνίη

From LSJ

καὶ παρὰ δύναμιν τολμηταὶ καὶ παρὰ γνώμην κινδυνευταὶ καὶ ἐν τοῖς δεινοῖς εὐέλπιδες → they are bold beyond their strength, venturesome beyond their better judgment, and sanguine in the face of dangers

Source

French (Bailly abrégé)

ης (ἡ) :
ion. c. λαμπροφωνία.