Vampire

A vampire is a being from folklore who subsists by feeding on the life essence (generally in the form of blood) of the living.

Folklore
In European folklore, vampires were undead beings that often visited loved ones and caused mischief or deaths in the neighbourhoods they inhabited when they were alive. They wore shrouds and were often described as bloated and of ruddy or dark countenance, markedly different from today's gaunt, pale vampire which dates from the early 19th century. Although vampiric entities have been recorded in most cultures, the term vampire was not popularised in the West until the early 18th century, after an influx of vampire superstition into Western Europe from areas where vampire legends were frequent, such as the Balkans and Eastern Europe, although local variants were also known by different names, such as shtriga in Albania, vrykolakas in Greece and strigoi in Romania. This increased level of vampire superstition in Europe led to mass hysteria and in some cases resulted in corpses actually being staked and people being accused of vampirism.

In modern times, however, the vampire is generally held to be a fictitious entity, although belief in similar vampiric creatures such as the chupacabra still persists in some cultures. Early folk belief in vampires has sometimes been ascribed to the ignorance of the body's process of decomposition after death and how people in pre-industrial societies tried to rationalise this, creating the figure of the vampire to explain the mysteries of death. Porphyria was also linked with legends of vampirism in 1985 and received much media exposure, but has since been largely discredited.

The charismatic and sophisticated vampire of modern fiction was born in 1819 with the publication of The Vampyre by John Polidori; the story was highly successful and arguably the most influential vampire work of the early 19th century. However, it is Bram Stoker's 1897 novel Dracula which is remembered as the quintessential vampire novel and provided the basis of the modern vampire legend. The success of this book spawned a distinctive vampire genre, still popular in the 21st century, with books, films, and television shows. The vampire has since become a dominant figure in the horror genre.

Etymology
The Oxford English Dictionary dates the first appearance of the English word vampire (as vampyre) in English from 1734, in a travelogue titled Travels of Three English Gentlemen published in The Harleian Miscellany in 1745. Vampires had already been discussed in French and German literature. After Austria gained control of northern Serbia and Oltenia with the Treaty of Passarowitz in 1718, officials noted the local practice of exhuming bodies and "killing vampires”. These reports, prepared between 1725 and 1732, received widespread publicity. The English term was derived (possibly via French vampyre) from the German Vampir, in turn derived in the early 18th century from the Serbian vampir (Cyrillic: вампир), when Arnold Paole, a purported vampire in Serbia was described during the time when Northern Serbia was part of the Austrian Empire.

The Serbian form has parallels in virtually all Slavic languages: Bulgarian and Macedonian вампир (vampir), Bosnian: vampir, Croatian vampir, Czech and Slovak upír, Polish wąpierz, and (perhaps East Slavic-influenced) upiór, Ukrainian упир (upyr), Russian упырь (upyr'), Belarusian упыр (upyr), from Old East Slavic упирь (upir') (note that many of these languages have also borrowed forms such as "vampir/wampir" subsequently from the West; these are distinct from the original local words for the creature). The exact etymology is unclear. Among the proposed proto-Slavic forms are *ǫpyrь and *ǫpirь.

Another, less widespread theory, is that the Slavic languages have borrowed the word from a Turkic term for "witch" (e.g., Tatar ubyr). Czech linguist Václav Machek proposes Slovak verb "vrepiť sa" (stick to, thrust into), or its hypothetical anagram "vperiť sa" (in Czech, archaic verb "vpeřit" means "to thrust violently") as an etymological background, and thus translates "upír" as "someone who thrusts, bites". An early use of the Old Russian word is in the anti-pagan treatise "Word of Saint Grigoriy" (Russian Слово святого Григория), dated variously to the 11th–13th centuries, where pagan worship of upyri is reported.