Webster’s Revised Unabridged Dictionary · 1913
Atrocity
A·troc′i·ty (ȧ·trŏs′ĭ·ty̆), n.; pl. Atrocities. [F. atrocité, L. atrocitas, fr. atrox, atrocis, cruel.] 1. Enormous wickedness; extreme heinousness or cruelty.
2. An atrocious or extremely cruel deed.
The atrocities which attend a victory. Macaulay.