reveille

[rev-uh-lee; British ri-val-ee] /ˈrɛv ə li; British rɪˈvæl i/
noun
1.
a signal, as of a drum or bugle, sounded early in the morning to awaken military personnel and to alert them for assembly.
2.
a signal to arise.
Origin
1635-45; < French réveillez, plural imperative of réveiller to awaken, equivalent to r(e)- re- + éveiller, Old French esveillier ≪ Latin ēvigilāre to watch, be vigilant (ē- e-1 + vigilāre to watch; see vigil)
Examples from the web for reveille
  • After a minute's silence, he lifts the instrument again to sound the reveille.
  • It needed not the sound of reveille to wake the members.
British Dictionary definitions for reveille

reveille

/rɪˈvælɪ/
noun
1.
a signal, given by a bugle, drum, etc, to awaken soldiers or sailors in the morning
2.
the hour at which this takes place
Also called (esp US) rouse
Word Origin
C17: from French réveillez! awake! from re- + Old French esveillier to be wakeful, ultimately from Latin vigilāre to keep watch; see vigil
Word Origin and History for reveille
n.

1640s, from French réveillez-vous "awaken!" imperative plural of réveiller "to awaken, to wake up," from Middle French re- "again" (see re-) + eveiller "to rouse," from Vulgar Latin *exvigilare, from Latin ex- "out" + vigilare "be awake, keep watch" (see vigil).