Liddell-Scott-Jones

θράσος (thrasos) boldness ^G:A

θράσος [ᾰ], εος, τό,

(qrasu/s) ={θάρσος} (which see), courage, [Refs 8th c.BC+]; θ. πολέμων courage in war, [Refs 5th c.BC+]; θράσει boldly, [Refs 5th c.BC+]; but more frequently ἰσχύος θ. confidence in strength, [Refs 5th c.BC+]

__II in bad sense, over-boldness, rashness, insolence, ἐς τοῦτο θράσεος (variant{θάρσεος}) ἀνήκει [θράσος [prev. author] “Lg.” 701b ">Refs 5th c.BC+]; ἀναίδεια καὶ θ. [Refs 4th c.BC+]; opposed to αἰδώς, [θράσος μὲν γάρ ἐστιν ἄλογος ὁρμή, θάρσος δὲ ἔλλογος ὁρμή 1st-2nd c.AD: Ammonius Grammaticus “περὶ ὁμοίων καὶ διαφόρων λέξεων” p.71 V.; οἷον πέπονθε τὸ θάρσος πρὸς τὸ θράσος 4th c.BC: Aristoteles Philosophus “Ethica Eudemia” 1234b12, compare 4th c.AD: Eusebius Myndius Philosophus 56, 2nd c.AD: Lucianus Sophista “Musc.Enc.” 5.">Refs 4th c.BC+] —This distinction holds good in _Attic dialect_ Prose: θάρσος is not found in Comedy texts; θαρσύνω and θρασύνω are used indifferently; θρασέω and θαρσύς are not found; compare θρασύς near the end, θρασύτης.