reveille


From The Collaborative International Dictionary of English v.0.48:

Reveille \Re*veil"le\, n. [F. r['e]veil, fr. r['e]veiller 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. r['e]veillez,2d pers. pl.
   See Vigil.] (Mil.)
   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.
   [1913 Webster]

         For at dawning to assail ye
         Here no bugles sound reveille.           --Sir W.
                                                  Scott.
   [1913 Webster]
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