ulhheðinn - ulhhe inn

...In a sudden battle, he becomes violent, displays twice his usual strength and ferocity, and usually collapses afterwards. He is written alongside Úlfheðinn and is considered synonymous with it. Berserk means a man wearing a bear's shirt, and Úlfheðinn means a man wearing a wolf's jacket.

*Some of the terminology that mentions "úlfheðinn" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…急戦に際して狂暴になり，ふだんに倍する強さと猛烈さを発揮し，通例その後虚脱状態に陥る。ウールブヘジンúlfheðinnと並んで記され，また同義とされる。ベルセルクは熊björnのシャツserkrを，ウールブヘジンは狼úlfrのジャケットheðinnを着けた男の意。…

※「úlfheðinn」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報