1. (

• berserker ,
• berserk

) one of the ancient Norse warriors legendary for working themselves into a frenzy before a battle and fighting with reckless savagery and insane fury ;

1. (

• amuck ,
• amok ,
• berserk

) wildly frenzied and out of control; "the soldier was completely amuck"; "berserk with grief"; "a berserk worker smashing windows" ;