Ber"serk (?), Ber"serk*er (?), n. [Icel. berserkr.]
1. Scand. Myth.
One of a class of legendary heroes, who fought frenzied by intoxicating liquors, and naked, regardless of wounds.
Longfellow.
2.
One who fights as if frenzied, like a Berserker.
© Webster 1913.