Main Entry: wreak

Pronunciation: \ˈrēk also ˈrek\

Function: transitive verb

Etymology: Middle English wreken, from Old English wrecan to drive, punish, avenge; akin to Old High German rehhan to avenge and perhaps to Latin urgēre to drive on, urge

Date: before 12th century

1 a archaic : avenge b : to cause the infliction of (vengeance or punishment)
2 : to give free play or course to (malevolent feeling)
3 : bring about, cause <wreak havoc>