Draugr : The Death Lord

A draugr, draug,draugur , or draugen, also known as aptrganga (literally "after-walker", or "one who walks after death") is an undead creature from Norse mythology, a subset of Germanic mythology. The original Norse meaning of the word is ghost, and older literature makes clear distinctions between sea-draug and land-draug. Draugar were believed to live in the graves of the dead, with a draugr being the animated body of the dead. As the graves of important men often contained a good amount of wealth, the draugr jealously guards his treasures, even after death.
The Old English cognate was dréag ("apparition, ghost"). The Gaelic word dréag or driug meaning "portent, meteor" is borrowed from either the Old English or the Old Norse word.


Traits

 Runestone is interpreted
 as having a
"grave binding inscription"
used to keep the
deceased in its grave

 Draugar possess superhuman strength, can increase their size at will, and carry the unmistakable stench of decay. They are undead Vikings that retain some semblance of intelligence, and who delight in the suffering that they cause. The draugr's ability to increase its size also increased its weight, and the body of the draugr was described as being extremely heavy. Thorolf of Eyrbyggja Saga was "uncorrupted, and with an ugly look about him... swollen to the size of an ox," and his body was so heavy that it could not be raised without levers. They are also noted for the ability to rise from the grave as wisps of smoke and "swim" through solid rock, which would be useful as a means of exiting their graves. In folklore the draugar slay their victims through various methods including crushing them with their enlarged forms, devouring their flesh, devouring them whole in their enlarged forms, indirectly killing them by driving them mad, and drinking their blood. Animals feeding near the grave of a draugr may be driven mad by the creature's influence. They may also die from being driven mad. Thorolf, for example, caused birds that flew over his howe to drop dead. Draugr are also noted as being able to drive living people insane.
The draugr's victims were not limited to trespassers in its howe. The roaming ghosts decimated livestock by running the animals to death while either riding them or pursuing them in some hideous, half-flayed form. Shepherds, whose duties to their flocks left them out of doors at night time, were also particular targets for the hunger and hatred of the undead:
... the oxen which had been used to haul Thorolf's body were ridden to death by demons, and every single beast that came near his grave went raving mad and howled itself to death. The shepherd at Hvamm often came racing home with Thorolf after him. One day that Fall neither sheep nor shepherd came back to the farm.
Draugar are noted for having numerous magical abilities (referred to as trollskap) resembling those of living witches and wizards, such as shape-shifting, controlling the weather, and seeing into the future. Among the creatures that a draugr may turn into are a seal, a great flayed bull, a grey horse with a broken back but no ears or tail, and a cat that would sit upon a sleeper's chest and grow steadily heavier until the victim suffocated.The draugr Thrain shape-shifted into a "cat-like creature" (kattakyn) in Hromundar saga Greipssonar:
Then Thrain turned himself into a troll, and the barrow was filled with a horrible stench; and he stuck his claws into the back of Hromund's neck, tearing the flesh from his bones...
Draugar have the ability to enter into the dreams of the living.Draugar also have the ability to curse a victim, as shown in the Grettis Saga where Grettir is cursed to be unable to become any stronger. Draugar also brought disease to a village and could create temporary darkness in daylight hours. While the draugr certainly preferred to be active during the night, it did not appear to be vulnerable to sunlight like some other revenants. A draugr's presence may be shown by a great light that glowed from the mound like "fox-fire." This fire would form a barrier between the land of the living and the land of the dead.The draugr could also move magically through the earth, swimming through solid stone as does Killer-Hrapp:
Then Olaf tried to rush Hrapp, but Hrapp sank into the ground where he had been standing and that was the end of their encounter.
The creation of a draugr is not exactly clear, but in the Eyrbyggja saga, a shepherd is killed by a draugr and rises the next night as one himself. The draugr is also often shown as haunting its living family.
Some draugar are immune to weapons, and only a hero has the strength and courage needed to stand up to so formidable an opponent. In legends the hero would often have to wrestle the draugr back to his grave, thereby defeating him, since weapons would do no good. A good example of this kind of fight is found in the Hrómundar saga Gripssonar. Although iron could injure a draugr, as is the case with many supernatural creatures, it would not be sufficient to stop it. Sometimes the hero is required to dispose of the body in unconventional ways. The preferred method is to cut off the draugr's head, burn the body, and dump the ashes in the sea; the emphasis being on making absolutely sure the draugr was dead and gone.
The draugar were said to be either hel-blár ("blue-death") or, conversely, nár-fölr ("corpse-pale").The "blue-death" color was not actually achromatic but was a dark blue or maroon hue that covered the entire body. Glámr, the undead shepherd of the Grettis saga, was reported to be dark blue in color and in Laxdœla saga the bones of a dead sorceress who had appeared in dreams were dug up and found to be "blue and evil looking."
The resting place of the draugr was a tomb that served much as a workable home for the creature. Draugar are able to leave this dwelling place and visit the living during the night. Such visits are supposed to be universally horrible events that often end in death for one or more of the living, which would then warrant the exhumation of the draugr's tomb by a hero. The motivation of the actions of a draugr was primarily jealousy and greed. The greed of a draugr causes it to viciously attack any would-be grave robbers, but the draugr also expresses an innate jealousy of the living, stemming from a longing for the things of the life it once had. This idea is clearly expressed in the Friðþjofs saga, where a dying king declared:
My howe shall stand beside the firth. And there shall be but a short distance between mine and Thorsteinn's, for it is well that we should call to one another.

A draugr aboard
 a ship, in sub-human
form, wearing oilskins

This desire for the friendship experienced in life is one example of the manifestation of this aspect of the draugr. Draugr also exhibit an immense and nearly insatiable appetite, as shown in the encounter of Aran and Asmund, sword brothers who made an oath that if one should die, the other would sit vigil with him for three days inside the burial mound. When Aran died, Asmund brought his own possessions into the barrow: banners, armor, hawk, hound, and horse. Then Asmund set himself to wait the agreed upon three days:
During the first night, Aran got up from his chair and killed the hawk and hound and ate them. On the second night he got up again from his chair, and killed the horse and tore it into pieces; then he took great bites at the horse-flesh with his teeth, the blood streaming down from his mouth all the while he was eating... The third night Asmund became very drowsy, and the first thing he knew, Aran had got him by the ears and torn them off.

Means of prevention
Traditionally, a pair of open iron scissors were placed on the chest of the recently deceased, and straws or twigs might be hidden among their clothes. The big toes were tied together or needles were driven through the soles of the feet in order to keep the dead from being able to walk. Tradition also held that the coffin should be lifted and lowered in three different directions as it was carried from the house to confuse a possible draugr's sense of direction.
The most effective means of preventing the return of the dead was believed to be the corpse door. A special door was built, through which the corpse was carried feet-first with people surrounding it so the corpse couldn't see where it was going. The door was then bricked up to prevent a return. It is speculated that this belief began in Denmark and spread throughout the Norse culture. The belief was founded on the idea that the dead could only leave through the way they entered.
In Eyrbyggja Saga the draugar infesting the home of the Icelander Kiartan were driven off by holding a "door-doom". One by one the draugar were summoned to the door-doom and given judgment, and they were forced out of the home by this legal method. The home was then purified with holy water to ensure they never came back.

Similar creatures
A variation of the draugr is the haugbui. The haugbui (from the Old Norse word haugr meaning "howe" or "barrow") was a mound-dweller, the dead body living on within its tomb. The notable difference between the two was that the haugbui is unable to leave its grave site and only attacks those that trespass upon their territory.
The haugbui was rarely found far from its burial place and is a type of undead commonly found in Norse saga material. The creature is said to either swim alongside boats or sail around them in a partially submerged vessel, always on their own. In some accounts, witnesses portray them as shape-shifters who take on the appearance of seaweed or moss-covered stones on the shoreline.
The words "dragon" and "draugr" are not linguistically related. However, both the serpent and the spirit serve as jealous guardians of the graves of kings or ancient civilizations. Dragons that act as draugar appear in Beowulf as well as in some of the heroic lays of the Poetic Edda (in the form of Fafnir).

Folklore

Norse
One of the best-known draugr in the modern world is Glámr, who was defeated by the hero of the Grettis Saga. The saga includes a short account of him as a living man and a full account of his haunting, up to the intervention of Grettir who wrestled him back to death.
A somewhat ambivalent, alternative view of the draugr is presented by the example of Gunnar in Njál's saga:
It seemed as though the howe was agape, and that Gunnar had turned within the howe to look upwards at the moon. They thought that they saw four lights within the howe, but not a shadow to be seen. Then they saw that Gunnar was merry, with a joyful face.
In the Eyrbyggja Saga a shepherd is assaulted by a blue-black draugr. The shepherd's neck is broken during the ensuing scuffle. The shepherd rises the next night as a draugr.
Recent
In more recent folklore, the draugr is often identified with the spirits of mariners drowned at sea. In Scandinavian folklore, the creature is said to possess a distinctly human form, with the exception that its head is composed entirely of seaweed. In other tellings, the draug is described as being a headless fisherman, dressed in oilskin and sailing in half a boat. This trait is common in the northernmost part of Norway, where life and culture was based on fishing more than anywhere else. The Norwegian municipality of Bø has the half-boat of draugen in its coat-of-arms. The reason for this may be that the fishermen often drowned in great numbers, and the stories of restless dead coming in from sea were more common up north than anywhere else in the country.
A recorded legend from Trøndelag tells how a corpse lying on a beach became the object of a quarrel between the two types of draugr. A similar source even tells of a third type, the gleip, known to hitch themselves to sailors walking ashore and make them slip on the wet rocks. Norwegian folklore thus records a number of different draug-types.

Literature
The modern and popular connection between the draugr and the sea can be traced back to the author Jonas Lie and the story-teller Regine Nordmann, as well as the drawings of Theodor Kittelsen, who spent some years living in Svolvær. Up north, the tradition of sea-draugar is especially vivid.
Arne Garborg describes land-draugar coming fresh from the graveyards, and the term draug is even used of vampires. (In Norway "vampires" is translated as "Bloodsucker-draugar".) The notion of mountain-habiting draug is present in the poetic works of Henrik Ibsen (Peer Gynt), and Aasmund Olavsson Vinje. The Nynorsk translation of The Lord of the Rings used the term for both ring-wraiths and the dead men of Dunharrow.
Draugr sightings in modern times are not common, but are still reported by individuals from time to time. Due to this trend, the term "draug" has come to be used to describe any type of revenant in Nordic folklore.

Source: en.wikipedia.org/wiki/Draugr