Reveille
Reveille , noun
[French réveil, from réveiller to awake; pref. re- re- + pref. es- (Latin ex) + veiller to awake, watch, Latin vigilare to watch. The English form was prob. taken by mistake from the French imper. réveillez,2d pers. pl. See Vigil.]
(Military) 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.
For at dawning to assail ye
Here no bugles sound reveille.