Origin of reveille
- Alteration of French réveillez second person pl. imperative of réveiller to wake from Old French resveiller re- re- esveiller to awake (from Vulgar Latin exvigilāre) (Latin ex- ex-) (Latin vigilāre to awake) (from vigil awake weg- in Indo-European roots)
From American Heritage Dictionary of the English Language, 5th Edition
- From French rÃ©veillez, imperative form of rÃ©veiller (“to wake") .