ὠκυφόνος
From LSJ
μή, φίλα ψυχά, βίον ἀθάνατον σπεῦδε, τὰν δ' ἔμπρακτον ἄντλει μαχανάν → Oh! my soul do not aspire to eternal life, but exhaust the limits of the possible. | Do not yearn, O my soul, for immortal life! Use to the utmost the skill that is yours. | Do not, my soul, strive for the life of the immortals, but exhaust the practical means at your disposal.
English (LSJ)
ον,
A quickly fatal, of diseases, prob. in Aret.SA2.3.
Greek (Liddell-Scott)
ὠκυφόνος: -ον, ὁ ταχέως ἐπιφέρων θάνατον, θανατηφόρος, ἐπὶ νοσημάτων, Ἀρετ. περὶ Αἰτ. Ὀξ. Παθ. 2. 3.