n.
Pronunciation: ' re-v ə -l ē , Brit ri- ' va-li or - ' ve-
Function: noun
Etymology: modification of French réveillez, imperative plural of réveiller to awaken, from Middle French reveiller, from re- + eveiller to awaken, from Vulgar Latin *exvigilare, from Latin ex- + vigilare to keep watch, stay awake ― more at VIGILANT
Date: 1644
1 : a signal to get up mornings
2 : a bugle call at about sunrise signaling the first military formation of the day also : the formation so signaled