BERSERK
amuck, amok, berserk
(adjective) wildly frenzied and out of control; “the soldier was completely amuck”; “berserk with grief”; “a berserk worker smashing windows”
berserker, berserk
(noun) one of the ancient Norse warriors legendary for working themselves into a frenzy before a battle and fighting with reckless savagery and insane fury
Source: WordNet® 3.1
Etymology
Noun
berserk (plural berserks)
(historical) A crazed Norse warrior who fought in a frenzy; a berserker.
Adjective
berserk (comparative more berserk, superlative most berserk)
Injuriously, maniacally, or furiously violent or out of control.
Weird; bizarre.
Anagrams
• Kerbers
Source: Wiktionary
Ber"serk, Ber"serk*er, n. Etym: [Icel. berserkr.]
1. (Scand. Myth.)
Definition: One of a class of legendary heroes, who fought frenzied by
intoxicating liquors, and naked, regardless of wounds. Longfellow.
2. One who fights as if frenzied, like a Berserker.
Source: Webster’s Unabridged Dictionary 1913 Edition