μεθειστήκειν

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

French (Bailly abrégé)

pqp. de μεθίστημι.