berserk
— Adjective
– English
~ wildly frenzied and out of control; "the soldier was completely amuck"; "berserk with grief"; "a berserk worker smashing windows"
berserk
— Noun
– English
~ one of the ancient Norse warriors legendary for working themselves into a frenzy before a battle and fighting with reckless savagery and insane fury
berserker
— Noun
– English
~ one of the ancient Norse warriors legendary for working themselves into a frenzy before a battle and fighting with reckless savagery and insane fury