Wreak
Wreak (rēk) , intransitive verb
Wreak (rēk) , transitive verb
[Old English wreken to revenge, punish, drive out, Anglo-Saxon wrecan; akin to OFries. wreka, Old Saxon wrekan to punish, Dutch wreken to avenge, German rachen, Old High German rehhan, Icelandic reka to drive, to take vengeance, Gothic wrikan to persecute, Lithuanian vargas distress, vargti to suffer distress, Latin urgere to drive, urge, Greek e'i`rgein to shut, Sanskrit vrj to turn away. Compare Urge, Wreck, Wretch.]
The word wrought is sometimes assumed to be the past tense of wreak, as the phrases wreak havoc and wrought havoc are both commonly used. In fact, wrought havoc is not as common as wreaked havoc. Whether wrought is considered as the past tense of wreak or of work, wrought havoc has essentially the same meaning. Etymologically, however, wrought is only the past tense of work.
Wreak , noun
[Compare Anglo-Saxon wrac exile, persecution, misery. See Wreak, transitive verb]