REVEILLE

reveille

(noun) a signal to get up in the morning; in the military it is a bugle call at sunrise

reveille, wake-up signal

(noun) (military) signal to wake up

Source: WordNet® 3.1

Etymology

Noun

reveille (plural reveilles)

(military) The sounding of a bugle or drum early in the morning to awaken soldiers.

Source: Wiktionary

Re*veil"le, n. Etym: [F. réveil, fr. réveiller to awake; pref. re- re- + pref. es- (L. ex) + veiller to awake, watch, L. vigilare to watch. The English form was prob. taken by mistake from the French imper. réveillez,2d pers. pl. See Vigil.] (Mil.)

Definition: The beat of drum, or bugle blast, about break of day, to give notice that it is time for the soldiers to rise, and for the sentinels to forbear challenging. "Sound a reveille." Dryden. For at dawning to assail ye Here no bugles sound reveille. Sir W. Scott.

Source: Webster’s Unabridged Dictionary 1913 Edition