No, berserk is an English word.
Your incessant questions are driving me berserk! If I am not careful, my answer may drive you berserk. The Whirling Dervishes seem to be going berserk.
That is the correct spelling of the adjective "berserk" (crazed, wild).
The disgruntled postal worker went completely berserk.
Germany nitwits
berserk?
The correct spelling is berserk (wild, crazed, or uncontrollable).
"Suddenly as the viking leaped off the longboat to raid the monastery his blood-lust peaked and he went completely Berserk!. Seeking out monks to slay and murder or enslave. "
"Berserk" means crazy, describing a frenzied warrior in Old Icelandic.
It's at the top of page 176 in the first book.
The Nordic word for warrior is "kriger" in Danish, "kriger" in Norwegian, "krigare" in Swedish, and "soturi" in Finnish.
The duration of Going Berserk is 1.4 hours.