εὐθυθάνατος
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
English (LSJ)
[θᾰ], ον,
A quick-killing, mortal, πληγή Plu.Ant.76.
German (Pape)
[Seite 1070] sogleich tödtend, πληγή, Plut. Ant. 76.
Greek (Liddell-Scott)
εὐθυθάνατος: -ον, ταχέως φονεύων, θανάσιμος, πληγὴ Πλουτ. Ἀντών. 76.