οἰστρᾶν

From LSJ

τὸ δανείζεσθαι τῆς ἐσχάτης ἀφροσύνης καὶ μαλακίας ἐστίν → being in debt is a mark of extreme folly and moral weakness (Plutarch, On Avoiding Debt 829F3)

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: οἰστράω) be frantic, be frenzied, be mad, make frantic