Witchcraft is the use of magic by a person called a witch. Traditionally, "witchcraft" means the use of magic to inflict supernatural harm or misfortune on others, and this remains the most common and widespread meaning. Though the idea of witchcraft is largely imaginary, it has nevertheless served in many cultures as a way to explain the presence of evil. The belief in witches has been found throughout history in a great number of societies worldwide. Most of these societies have used protective magic or counter-magic against witchcraft, and have shunned, banished, imprisoned, physically punished or killed alleged witches. Anthropologists use the term "witchcraft" for similar beliefs about harmful occult practices in different cultures, and these societies often use the term when speaking in English.
Belief in witchcraft as malevolent magic is attested from ancient Mesopotamia, and in Europe, belief in witches traces back to classical antiquity. In medieval and early modern Europe, accused witches were usually women who were believed to have secretly used black magic (maleficium) against their own community. Usually, accusations of witchcraft were made by neighbors of accused witches, and followed from social tensions. Witches were sometimes said to have communed with demons or with the Devil, though such accusations were mainly made against perceived opponents of the Church. It was thought witchcraft could be thwarted by white magic, provided by 'cunning folk' or 'wise people'. Suspected witches were often prosecuted and punished, if found guilty or simply believed to be guilty. European witch-hunts and witch trials in the early modern period led to tens of thousands of executions. While magical healers and midwives were sometimes accused of witchcraft, they made up a minority of those accused. European belief in witchcraft gradually dwindled during and after the Age of Enlightenment.
Many indigenous belief systems that include the concept of witchcraft likewise define witches as malevolent, and seek healers (such as medicine people and witch doctors) to ward off and undo bewitchment. Some African and Melanesian peoples believe witches are driven by an evil spirit or substance inside them. Modern witch-hunting takes place in parts of Africa and Asia.
Since the 1930s, followers of certain kinds of modern paganism identify as witches and redefine the term "witchcraft" as part of their neopagan beliefs and practices. Other neo-pagans avoid the term due to its negative connotations.
The most common meaning of "witchcraft" worldwide is the use of harmful magic. Belief in malevolent magic and the concept of witchcraft has lasted throughout recorded history and has been found in cultures worldwide, regardless of development. Most societies have feared an ability by some individuals to cause supernatural harm and misfortune to others. This may come from mankind's tendency "to want to assign occurrences of remarkable good or bad luck to agency, either human or superhuman". Historians and anthropologists see the concept of "witchcraft" as one of the ways humans have tried to explain strange misfortune. Some cultures have feared witchcraft much less than others because they tend to have other explanations for strange misfortune. For example, the Gaels of Ireland and the Scottish Highlands historically held a strong belief in fairy folk, who could cause supernatural harm, and witch-hunting was very rare in these regions compared to other regions of the British Isles.
Historian Ronald Hutton outlined five key characteristics ascribed to witches and witchcraft by most cultures that believe in this concept: the use of magic to cause harm or misfortune to others; it was used by the witch against their own community; powers of witchcraft were believed to have been acquired through inheritance or initiation; it was seen as immoral and often thought to involve communion with evil beings; and witchcraft could be thwarted by defensive magic, persuasion, intimidation or physical punishment of the alleged witch.
A common belief worldwide is that witches use objects, words, and gestures to cause supernatural harm, or that they simply have an innate power to do so. Hutton notes that both kinds of practitioners are often believed to exist in the same culture and that the two often overlap, in that someone with an inborn power could wield that power through material objects.
One of the most influential works on witchcraft and concepts of magic was E. E. Evans-Pritchard's Witchcraft, Oracles and Magic Among the Azande, a study of Azande witchcraft beliefs published in 1937. This provided definitions for witchcraft which became a convention in anthropology. However, some researchers argue that the general adoption of Evans-Pritchard's definitions constrained discussion of witchcraft beliefs, and even broader discussion of magic and religion, in ways that his work does not support. Evans-Pritchard reserved the term "witchcraft" for the actions of those who inflict harm by their inborn power and used "sorcery" for those who needed tools to do so. Historians found these definitions difficult to apply to European witchcraft, where witches were believed to use physical techniques, as well as some who were believed to cause harm by thought alone. The distinction "has now largely been abandoned, although some anthropologists still sometimes find it relevant to the particular societies with which they are concerned".
While most cultures believe witchcraft to be something willful, some Indigenous peoples in Africa and Melanesia believe witches have a substance or an evil spirit in their bodies that drives them to do harm. Such substances may be believed to act on their own while the witch is sleeping or unaware. The Dobu people believe women work harmful magic in their sleep while men work it while awake. Further, in cultures where substances within the body are believed to grant supernatural powers, the substance may be good, bad, or morally neutral. Hutton draws a distinction between those who unwittingly cast the evil eye and those who deliberately do so, describing only the latter as witches.
The universal or cross-cultural validity of the terms "witch" and "witchcraft" are debated. Hutton states:
[Malevolent magic] is, however, only one current usage of the word. In fact, Anglo-American senses of it now take at least four different forms, although the one discussed above seems still to be the most widespread and frequent. The others define the witch figure as any person who uses magic ... or as the practitioner of nature-based Pagan religion; or as a symbol of independent female authority and resistance to male domination. All have validity in the present.
According to the United Nations Special Rapporteur on Extrajudicial, Summary or Arbitrary Executions there is "difficulty of defining 'witches' and 'witchcraft' across cultures—terms that, quite apart from their connotations in popular culture, may include an array of traditional or faith healing practices".
Anthropologist Fiona Bowie notes that the terms "witchcraft" and "witch" are used differently by scholars and the general public in at least four ways. Neopagan writer Isaac Bonewits proposed dividing witches into even more distinct types including, but not limited to: Neopagan, Feminist, Neogothic, Neoclassical, Classical, Family Traditions, Immigrant Traditions, and Ethnic.
The word "witchcraft" is over a thousand years old: Old English formed the compound wiccecræft from wicce ('witch') and cræft ('craft'). The masculine form was wicca ('male sorcerer').
According to the Oxford English Dictionary, wicce and wicca were probably derived from the Old English verb wiccian, meaning 'to practice witchcraft'. Wiccian has a cognate in Middle Low German wicken (attested from the 13th century). The further etymology of this word is problematic. It has no clear cognates in other Germanic languages outside of English and Low German, and there are numerous possibilities for the Indo-European root from which it may have derived.