defalcate: [15] Defalcate comes from medieval Latin dēfalcāre ‘cut off’, a compound verb formed from the prefix dē- ‘off’ and falx ‘sickle’ (source of French faux ‘scythe’). At first it meant simply ‘deduct’ in English; the modern legal sense ‘embezzle’ did not develop until the 19th century. [defalcate etymology, defalcate origin, 英语词源]