AskDefine | Define berserker

Dictionary Definition

berserker n : one of the ancient Norse warriors legendary for working themselves into a frenzy before a battle and fighting with reckless savagery and insane fury [syn: berserk]

User Contributed Dictionary



  1. One of a class of legendary Norse warriors who fought frenzied and shirtless regardless of wounds (possibly due to ingestion of psychotropic and hallucinatory drugs such as Fly Agaric Mushrooms).
  2. One who fights as if frenzied, like a Berserker.

Extensive Definition

Berserkers (or Berserks) were Norse warriors who wore coats of wolf or bear skin and who were commonly understood to have fought in an uncontrollable rage or trance of fury; the berserkergang, hence the modern word berserk.
The Úlfhéðnar (singular Úlfhéðinn) mentioned in the Vatnsdœla saga, Haraldskvæði and the Völsunga saga were said to wear the pelt of a wolf upon their heads when they entered battle. (For example: Bernhari, Haimric, Hlodwig, Theudberga, Warinhari, etc.) Úlfhéðnar are sometimes described as Odin's special warriors, with the pelt from a wolf and a spear as distinguishing feature.

Literary references

The earliest surviving reference to the term berserker is in Haraldskvæði, a skaldic poem composed by Thórbiörn Hornklofi in the late ninth century in honor of King Harald Fairhair, a famous ruler of Norway. The poem was preserved by Snorri Sturluson. In this poem, Harald's army includes a warrior gang of berserkers fighting under the name of the Norse god of war, Tyr, in the battle of Hafrsfjord. In it, they are described as Ulfheðnar ("men clad in wolf skins"). This grounds a connection between bears and wolves in Norse warrior culture and the common assumption that the word "berserker" itself originates from men wearing the skin of the bear. An alternative etymology is from "bare", meaning unencumbered by a mail shirt.
Snorri Sturluson goes on to mention berserkers in the Ynglinga saga (chapter 6): "His (Odin's) men rushed forward without armor, were as mad as dogs or wolves, bit their shields, and were as strong as bears or wild bulls, and killed people at a blow, but neither fire nor iron told upon themselves".
Berserkers appear prominently in a multitude of other sagas and poems including The Saga of Hrólf Kraki, many of which describe berserkers as ravenous barbarians who loot, plunder, and kill indiscriminately. They also wore bear coats.
Much can be derived about berserkers from Egils saga. Egil's grandfather was named Kveld-Ulf meaning "evening wolf", and this is generally ascribed as meaning he was a werewolf. Kveld-Ulf's son, referred to as Skalla-Grimm, was a berserker. Kveld-Ulf and Skalla-Grimm are both depicted as irascible and violent throughout the saga, the latter attempting to kill his son. Egill Skallagrímsson himself is described in the saga as attacking opponents with his teeth, ripping out another berserker's jugular vein during a duel. Patently, violence and gruesome tragedies permeate the berserker ethos described in Icelandic sagas such as this one.


Hilda Ellis-Davidson draws a parallel between berserkers and the mention by the Byzantine emperor Constantine VII in his book De cerimoniis aulae byzantinae ("Book of Ceremonies of the Byzantine court") of a "Gothic Dance" performed by members of his Varangian Guard (Norse warriors working in the service of the Byzantine Empire), who took part wearing animal skins and masks: she believes this may have been connected with berserker rites.
In 1015 Jarl Eiríkr Hákonarson of Norway outlawed berserkers. Grágás, the medieval Icelandic law-code, sentenced berserker warriors to outlawry. By the 1100s, organized berserker warbands had disappeared.
King Harald Fairhair's use of berserker "shock troops" broadened his sphere of influence. Other Scandinavian kings used berserkers as part of their army of hirðmen and sometimes ranked them as equivalent to a royal bodyguard. It may be that some of those warriors only adopted the organization or rituals of berserk warbands or used the name as a deterrent or claim of their ferocity.
Still, some scholars consider the frenzied and indomitable berserker and his bloodshot eyes to stand right alongside horned Viking helmets as a "feature of later literary [works] rather than contemporary historical ones", placing the legitimacy of Norse sagas as historical records into question.

Theories on the causes of the berserkergang

Theories about what caused berserker behavior include ingestion of materials with psychoactive properties, psychological processes, and medical conditions.
A Horizon Book on Vikings claims that some chieftains would hold their berserkers in reserve during a battle. Once a portion of the enemy line appeared to tire or weaken, the chieftains would send the berserkers charging into the enemy ranks to hopefully open a break and even panic the enemy. The book also claimed that while on sea voyages close to land, berserkers were sometimes asked to go ashore to find objects on land to wrestle or bash to give vent to their fury.
According to a theory of spirit possession, the berserk rage was achieved through possession by the animal spirit of either a bear or a wolf. Berserkers would cultivate an ability to allow the animal's spirit to take over their body during a fight. This is seen as a somewhat peculiar application of animal totemism.
Botanists have suggested the behavior might be tied to ingestion of bog myrtle (Myrica gale syn: Gale palustris), a plant that was one of the main spices in alcoholic beverages in Scandinavia. The drawback is that it increases the hangover headache afterwards. Drinking alcoholic beverages spiced with bog myrtle the night before going to battle might have resulted in unusually aggressive behavior.
The notion that Nordic Vikings used the fly agaric mushroom to produce their berserker rages was first suggested by the Swedish professor Samuel Ödman in 1784. Ödman based his theory on reports about the use of fly agaric among Siberian shamans. The notion has become widespread since the 19th century, but no contemporary sources mention this use or anything similar in their description of berserkers. In addition, the injection of bufotenine from Bufo marinus toad skin into humans was shown to produce similar symptoms to the "Berserker" descriptions. These findings, first examined by Howard Fabing in 1956, were later linked to the induction of zombie characteristics by ethnobotanists in 1983.
A British television program in 2004 tested the possible use of fly agaric and alcohol by training a healthy volunteer in the use of Viking weapons, then evaluating his performance under their influence. It was shown that use of fly agaric or alcohol severely reduced his fighting ability, and the tentative conclusion was that the berserk state was achieved psychologically; otherwise, berserkers would have been too easy to kill. Of course, this does not take into account the mindset that the berserker likely would have attempted to place himself in.
A simpler theory attributes the behavior to drunken rage. It is also possible that berserkers worked themselves into their frenzy through purely psychological processes, perhaps using frenzied rituals and dances. According to Saxo Grammaticus they also drank bear or wolf blood.
American professor Jesse L. Byock claims (in Scientific American, 1995) that berserker rage could have been a symptom of Paget's disease. Uncontrolled skull bone growth could have caused painful pressure in the head. He mentions the unattractive and large head of Egill Skallagrímsson in Egilssaga. Other possibilities are mild epilepsy, rabies, and hysteria. Nevertheless, these theories are highly unlikely, as the berserkers would presumably turn on each other as well as their enemies. During battle, they are consistently described in the frenzy of rage; yet berserkers, while purportedly felling allies, seem to have avoided attacking each other.

Parallels in other cultures

Among the Irish, Cúchulainn acted in the 'battle frenzy', or 'contortion', and many other famous Irish warriors from the pre-Christian period became possessed and frenzied. They are described in texts such as The Tain as foaming at the mouth and not calming down after battle until doused with cold water.
Similar behaviour is described in the Iliad, where warriors who are "possessed" by a god or goddess exhibit superhuman powers. Some aspects of the Malay phenomenon of running amok ("mengamuk" in Malay) bears a close resemblance to berserkergang.

Modern usage

The word "berserker" today applies to anyone who fights with reckless abandon and disregard to even his own life, a concept used during the Vietnam War and in Vietnam-inspired literature (Michael Herr's Dispatches) and film (Oliver Stone's Platoon and Adrian Lyne's Jacob's Ladder). "Going berserk" in this context refers to an overdose of adrenaline-induced opioids in the human body and brain leading a soldier to fight with fearless rage and indifference, a state strikingly similar to that of the 9th century berserkers observed in this article. "Going berserk" is also used colloquially to describe a person who is acting in a wild rage or in an uncontrolled and irrational manner. A recent controversy among civil rights advocates and law enforcement and emergency medicine professionals involves a state called "excited delirium", in which a "berserk" individual dies after the use of restraints.



  • Beard, D. J. "The Berserker in Icelandic Literature." In Approaches to Oral Literature, Ed. Robin Thelwall, Ulster: New University of Ulster, 1978, pp. 99-114.
  • Blaney, Benjamin. The Berserkr: His Origin and Development in Old Norse Literature, Ph.D. Diss. University of Colorado, 1972.
  • Davidson, Hilda R. E. "Shape-Changing in Old Norse Sagas." In Animals in Folklore, Ed. Joshua R. Porter and William M. S. Russell. Cambridge: Brewer; Totowa: Rowman and Littlefield, 1978, pp. 126-42.
  • Davis, EW (1983) "The ethnobiology of the Haitian zombie", Journal of Ethnopharmacology, 9:85-104.
  • Fabing, Howard D. "On Going Berserk: A Neurochemical Inquiry." Scientific Monthly, 83 [Nov. 1956].
  • Höfler, Otto. "Berserker." Reallexikon der Germanischen Altertumskunde. Bd.2. Ed. Johannes Hoops. Berlin: Walter de Gruyter. 1976. pp. 298-304.
  • Ole Högberg, Flugsvampen och människan. Section concerning the berserker myth is published online (In Swedish and PDF format) ISBN 91-7203-555-2
  • Holtsmark, Anne. "On the Werewolf Motif in Egil's saga Skalla-Grímssonar" Scientia Islandica/Science in Iceland 1 (1968), pp. 7-9.
  • von See, Klaus. "Berserker." Zeitschrift für deutsche Wortforschung 17 (1961), pp. 129-35; reprinted as "Exkurs rom Haraldskvæði: Berserker" in his Edda, Saga, Skaldendichtung: Aufsätze zur skandinavischen Literarur des Mittelalters. Heidelberg: Winter, 1981, pp. 311-7.
  • Michael P. Speidel, "Berserks: A History of Indo-European 'Mad Warriors' ", Journal of World History 13.2 (2002) 253-290
  • Weiser, Lilly. Altgermanische Jünglingsweihen und Männerbünde: Ein Beitrag zur deutschen und nordischen Alterums- und Volkskunde. Bausteine zur Volkskunde und Religionswissenschaft, 1 Buhl: Konkordia, 1927.
  • The Sagas of Icelanders: Penguin Classics Deluxe Edition (World of the Sagas), Ed. Örnólfur Thorsson. Penguin (Non-Classics); New Ed edition (February 27, 2001). pp.741-742.

External links

berserker in Bulgarian: Берсерк
berserker in Catalan: Berserker
berserker in Danish: Bersærkergang
berserker in German: Berserker
berserker in Spanish: Berserker
berserker in French: Berserk
berserker in Italian: Berserkr
berserker in Dutch: Berserker
berserker in Japanese: ベルセルク
berserker in Norwegian: Berserk
berserker in Polish: Berserk (mitologia)
berserker in Portuguese: Berserker
berserker in Romanian: Berserker
berserker in Russian: Берсерк
berserker in Slovenian: Berserker
berserker in Serbo-Croatian: Berserkeri
berserker in Finnish: Berserkki
berserker in Swedish: Bärsärk
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