berserk
Word family adjectiveberserkadverbberserkly
ber·serk /bɜːˈsɜːk, bə- $ bɜːrˈsɜːrk, ˈbɜːrsɜːrk/ adjectiveadjgo berserk informalVIOLENT to become very angry and violent 狂怒,暴跳如雷Dad went berserk when he found out. 爸爸知道以后勃然大怒。
Origin berserk (1800-1900) Old Norse berserkr “wild fighter”, from björn “bear” + serkr “shirt”