cry havoc

From Middle English, from the Anglo-Norman phrase crier havok (“cry havoc”) (a signal to soldiers to seize plunder), from Old French crier (“cry out, shout”) + havot (“pillaging, looting”).

cry havoc (third-person singular simple present cries havoc, present participle crying havoc, simple past and past participle cried havoc)

1. (obsolete) To shout out 'Havoc!'; that is, to give an army the order to plunder.
   • 1599 (first performance), William Shakespeare, “The Tragedie of Iulius Cæsar”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, (please specify the act number in uppercase Roman numerals, and the scene number in lowercase Roman numerals):

     Cry 'Havoc,' and let slip the dogs of war

   • c. 1608–1609 (date written), William Shakespeare, “The Tragedy of Coriolanus”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, (please specify the act number in uppercase Roman numerals, and the scene number in lowercase Roman numerals):

     Do not cry havoc, where you should but hunt

   • 1961 Aug, George Steiner, “Homer and the Scholars”, in The Atlantic Monthly, page 77:

     War and mortality cry havoc, yet the center holds. That center is the affirmation that actions of body and heroic spirit are in themselves a thing of beauty, that renown shall outweigh the passing terrors of death, and that no catastrophe, not even the fall of Troy, is final.