In Slavic mythology, a werewolf is a human-shapeshifter who temporarily takes the form of a wolf. Werewolves were often described as ordinary wolves, though some accounts noted peculiarities in appearance or behavior that hinted at their human origin. Werewolves retain human intelligence but cannot speak.
According to folk beliefs, transformation into a wolf is the most common form of shapeshifting among Slavs. The concept is ancient and appears to varying degrees among all Slavic peoples, with the most detailed accounts among Belarusians, Poles, and Ukrainians. In Russian folklore, the character is often simply called a shapeshifter, sharing clear similarities with the werewolf. South Slavic traditions sometimes conflate werewolves with vampires.
It was believed that sorcerers could transform into wolves by reciting spells and performing actions such as leaping, stepping over, tumbling through, or passing through magically imbued objects, or draping them over themselves. To revert to human form, sorcerers typically needed to repeat the actions in reverse. Sorcerers voluntarily became werewolves to cause harm to others.
Some beliefs described people born with a predisposition to periodic shapeshifting due to their parents' actions or as punishment for their own sins. Such werewolves were thought to exhibit zoomorphic traits in human form, such as hair resembling wolf fur. Transformations often occurred at night or during specific seasons. These werewolves were believed to lack control in wolf form, attacking livestock and even humans, including loved ones, and were sometimes associated with cannibalism. Ancient beliefs linked werewolves to celestial events like eclipses.
Folk beliefs also held that sorcerers or witches could transform a person into a wolf, often as an act of revenge, by casting spells on a wolf skin, belt, or enchanted door, among other methods. A popular narrative involved transforming an entire wedding party into wolves. The duration of the transformation ranged from days to years. Involuntary werewolves suffered fear and despair, longing for human life and avoiding true wolves. They were thought to avoid carrion and raw meat, subsisting on foraged food or stolen human provisions. Numerous methods were described to restore their human form.
Werewolf beliefs incorporated much of the wolf's symbolism in Slavic culture. The myth likely originated from ancient totemic beliefs and rites of youthful initiation. The werewolf image may have been influenced by observations of people with physical or mental disorders or of old and sick wolves. The concept has been reflected in Slavic literature.
Historical and geographical context The motif of humans transforming into wolves was present in the folk beliefs of all Slavic peoples, but it is best preserved among Ukrainians, , and eastern Poles.Wollman F. Vampyrické pověsti v oblasti středoevropské // Národopisný Věstník Českoslovanský. 1926. No. 18. pp. 133–156. Among Russians, the term volkolak is recorded only in southern regions, while elsewhere, those transforming into wolves were simply called shapeshifters, with beliefs closely resembling those about werewolves. In Slovak and especially Czech traditions, werewolf beliefs are scarce; among Sorbs, they are also diminished, primarily found in Lower Lusatia. South Slavic beliefs often conflate werewolves with vampires, with the exception of Slovenians,Plotnikova A. A. Этнолингвистическая география Южной Славии. М.: «Индрик», 2004. pp. 30, 51, 212–217, 634–637.(Традиционная духовная культура славян. Современные исследования). where these concepts nearly merge. Beyond folk beliefs, bylichkas, and byvalshchinas, werewolves also appear in a small number of fairy tales.
Regarding the antiquity of beliefs about human-to-wolf transformations in Slavic lands, the tribe of the Neuri, living in the 6th–5th centuries BCE somewhere in modern-day Ukraine and/or Belarus, is notable. According to Herodotus (c. 484–c. 430/425/420 BCE) in his Histories, members of this tribe transformed into wolves for a few days each year,Novichkova T. A. А. Волкодлак // Русский демонологический словарь. — СПб.: Петербургский писатель, 1995. pp. 114–117. Krinichnaya N. A. Оборотни // Русская мифология: Мир образов фольклора. — М.: Академический проект; Гаудеамус, 2004. — pp. 640–704. (Summa). , likely in winter:These people [Neuri] seem to be sorcerers. At least, the Scythians and Greeks living among them claim that each Neuri annually turns into a wolf for a few days and then returns to human form.This may refer to a ritualistic "transformation".Baring-Gould S. The Were-Wolf in the Middle-Ages // The Book of Werewolves: Being an Account of a Terrible Superstition. London: Smith, Elder & Co., 1865. pp. 9, 57–59. Comparing the Neuri's "shapeshifting" with Slavic ritual masking supports, for some researchers, the hypothetical Slavic nature of the Neuri. However, it cannot be definitively stated whether these beliefs originated with the Neuri, the Scythians, or the Greeks, as such beliefs were not uncommon among the latter.Berwiński R. W. Studia o literaturze ludowej ze stanowiska historycznej i naukowej krytyki. Poznań: Nakładem autora, 1854. pp. 50–68. The earliest evidence of beliefs about wolf transformations among Slavs likely comes from Italian and Byzantine chronicles mentioning the supernatural abilities of the Bulgarian prince Boyan the Mage (910–970):It is said that Boyan had so mastered magic that he once inadvertently turned into a wolf or a similar beast. (Latin original: Bajanum autem adeo foere magicam didisse, ut ex homine subito fieri lupum quamvecunque cerneres feram.)In the Tale of Igor's Campaign (1185), the Polotsk prince Vseslav Bryachislavich (d. 1101) transforms into a wolf at night and runs to Tmutarakan in that formNovichkova T. А. Волкодлак // Русский демонологический словарь. СПб.: Петербургский писатель, 1995. pp. 114–117. (though this may be metaphorical): Leaping from them [Kievans] as a fierce beast at midnight from Belgorod, when a dark mist hung... he leapt as a wolf to Nemiga from Dudutki... Prince Vseslav judged people, distributed cities to princes, but at night roamed as a wolf; from Kiev he reached [the crowing of] roosters to Tmutarakan; as a wolf, he crossed the path of great Khors.The wolf image, alongside other animal imagery, is also attributed in the poem to the bard Boyan and Prince Igor Svyatoslavich (1151–1201).Bondarenko A. O. Культ воїна-звіра у мілітарних традиціях на території України: дис. ... канд. іст. наук : 07.00.05 / Київський національний університет ім. Т. Шевченка. Киев, 2015. pp. 160-172. In the Serbian (Ilovitsa) and Russian Kormchaya books of 1262 and 1282, respectively, volkodlaki are mentioned (the first recorded use of the term), chasing clouds and devouring the moon and sun.Khobsein N. V. Вовкун // Гуцульська міфологія: Етнолінгвістичний словник / Інститут українознавства ім. І. Крип'якевича НАН України. Львів, 2002. pp. 72–81. In Russian epics, Volga Svyatoslavich transforms into a wolf:Volga, learned another wisdom, to turn into a grey wolf... It pleased Volga to gain much wisdom... to roam as a grey wolf across open fields.In Serbian epics, the hero Vuk Grgurević transforms into a wolf (prototype: despot Vuk Branković, d. 1485). According to Vyacheslav Vsevolodovich Ivanov and Vladimir Nikolayevich Toporov, this may indicate the existence of a common Slavic mythological wolf-hero.
In the 15th–18th centuries, beliefs in werewolves in Polish lands were frequently mentioned in local and foreign historical chronicles and demonological works.Baranowski B. Wilkołaki // W kręgu upiorów i wilkołaków. Łódź: Wydawnictwo Łódzkie, 1981. pp. 147–156. Osiński Z. Zabobon, przesąd, diabły, czarownice i wilkołaki w pamiętnikach polskich z XVI i XVII wieku // Annales Universitatis Mariae Curie-Skłodowska. Sectio F, Historia. Lublin: Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej, 2003. Vol. 58. pp. 65–67. — ISSN 0239-4251 Polish authors, within the prevailing European views, denied the possibility of real transformation, attributing it to illusory, devilish deception. One of the earliest recorded cases involves a Masurian peasant captured in a forest, with excessive body hair and numerous scars allegedly from dog bites, accused of attacking neighbors’ livestock in wolf form, which he gradually assumed around St. John the Baptist's Day and Christmas. He was imprisoned in the cellar of Prussian Duke Albert’s (1490–1568) castle, but the expected transformation did not occur; he was likely later burned alive. In the 17th–18th centuries, transformation into she-wolves was one of the accusations in Polish witch trials.
Most mythological stories and beliefs about werewolves, as with other figures of Slavic lower mythology, were recorded in the 19th–20th centuries. In the 20th century, traditional beliefs in shapeshifting waned, possibly due to the decline of traditional beliefs and the decreasing wolf population, though in some regions, tales of wolf transformations retain some popularity. In modern urban demonological beliefs, Slavic views on werewolves are being supplanted by the image of werewolves (lycanthropes) from Western popular culture.Aidachi D. Перевертень (вовк) у східнослов’янських літературах // Мова і культура. 2011. V. IV (150), iss. 14. pp. 237–246.
Etymology The term "werewolf" in Slavic languages, derived from Proto-Slavic * (hypothetical, possibly from dialectal *), is reflected in various forms across Slavic languages. It appears in numerous forms across Slavic languages and dialects, reflecting both regional variation and historical linguistic influence. In East Slavic languages (Russian, Ukrainian, Belarusian), variants include , , and , with additional dialectal forms."Волкола́к и Волкула́к". [Volkolak and Volkulak]. Словарь русских народных говоров. Вып. 5. Военство — Выростковый. Л.:Наука, Ленинградское отделение, 1970. P. 42.Dal V. Волк [Wolf ]. Толковый словарь живого великорусского языка в 4 т. 2-е изд. СПб.: Типография М. О. Вольфа, 1880. V. 1. P. 237. South Slavic languages (Bulgarian, Serbian, Croatian, Slovenian, etc.) preserve older and richly varied forms like , , and , some influenced by or borrowed into Greek.Bypдaлáκ. [Vurdalakl]. Этимологический словарь русского языка / Под рук. и ред. Н. М. Шанского. М.: Издательство Московского университета, 1968. V. I, iss. III.: В. P. 216. West Slavic and related languages (Polish, Czech, Slovak, Sorbian) show both native and borrowed forms, with Polish being especially prominent.Słupecki L. P. Wojownicy i wilkołaki = Wilkołactwo. [Warriors and werewolves = Werewolfism]. Wyd. 3 popr. i rozsz. Warszawa: Wydawnictwo Naukowe PWN, 2011. 257, S. Valentsova M. M. Словацкая мифологическая лексика на общеславянском фоне (этнолингвистический аспект) // Славянское языкознание: XV Международный съезд славистов. (Минск, 21–27 августа 2013 г.): Доклады российской делегации. [Slovak mythological lexicon on the pan-Slavic background (ethnolinguistic aspect) // Slavic linguistics: XV International Congress of Slavists. (Minsk, August 21–27, 2013): Reports of the Russian delegation.]. Российская акад. наук, Отд-ние ист.-филологических наук, Нац. ком. славистов Российской Федерации; редкол.: А. М. Молдован (отв. ред.), С. М. Толстая и др.. М.: Индрик, 2013. pp. 191–192.
The first part of the term derives from Proto-Slavic ("wolf"), adapting to each language's phonology. The second part, per the classical hypothesis, corresponds to Old Church Slavonic , Serbo-Croatian , Slovenian ("hair", "hide", "fur"), or "horse or cow hair", reconstructed as Proto-Slavic or . The alternation дл / л in волкодлак—волколак and о / у in волколак—волкулак results from consonant cluster simplification and substitution of labialized correlates.