berserk has definitions from the field of Scandinavian
1
[ noun ] (Scandinavian) 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

berserker

Related terms

Scandinavian

2
[ adjective ] in a murderous frenzy as if possessed by a demon

Examples

"the soldier was completely amuck" "berserk with grief" "a berserk worker smashing windows"

Related terms

insane

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