Grocott & Ward, comps. Grocott’s Familiar Quotations, 6th ed. 189-?.
Havock
Cry “Havock,” and let slip the dogs of war.
Shakespeare.—Julius Cæsar, Act III. Scene 1. (Antony.)
And when our closer stripe has won the fray,
Then let them loose for havoc.
Southey.—Madoc, Pt. I. Battle, Line 43.