[wreak] vt [ME wreken, fr. OE wrecan to drive, punish, avenge; akin to OHG rehhan to avenge and perh. to L urgere to drive on, urge] (bef. 12c) 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 "~ havoc"