[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 Synonyms:er
[adjective] in a murderous frenzy as if possessed by a demon; "the soldier was completely amuck"; "berserk with grief"; "a berserk worker smashing windows" Synonyms:amuck, amok, demoniac, demoniacal, possessed
