Past tense of 'havoc'; to cause widespread destruction or devastation.
From Middle English 'havok,' possibly from Old French 'havot' or 'havoie,' with disputed origins—may relate to Germanic roots meaning 'to hack.' The '-ed' ending forms the simple past tense.
The word 'havoc' has such a mysterious past that etymologists still debate it—it might come from Old Norse 'herja' (to harry) or could be an Old French word, showing how military vocabulary traveled between languages during the medieval period.
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