Jörmungandr

← Encyclopedia

Jörmungandr is the great serpent of Norse mythology that lies coiled around Midgard, the inhabited world, gripping its own tail beneath the sea — for which it is also called the Midgard Serpent, Miðgarðsormr. It is one of three monstrous children the medieval Icelandic sources give to the trickster Loki and the giantess Angrboða, the others being the wolf Fenrir and Hel, who rules the dead. By those accounts the gods, foreseeing trouble in the brood, scattered them: the serpent was cast into the ocean, where it grew until it spanned the earth.

What is known of Jörmungandr comes almost entirely from two thirteenth-century Icelandic collections — the Poetic Edda, a gathering of older verse, and the Prose Edda compiled by Snorri Sturluson — set down by Christians two centuries or more after the conversion of Iceland. The texts are the record of a mythology already past, and how faithfully they preserve earlier belief is a question scholars continue to weigh.

Two episodes carry the serpent’s weight. In one, Thor goes fishing with the giant Hymir, baits his hook with an ox-head, and hauls the serpent up from the deep until the two glare at one another across the gunwale before the line is cut. In the other, at Ragnarök — the foretold destruction of the gods — the serpent rises from the sea and the two meet for the last time. Thor kills it and walks nine paces before falling dead of its venom. The pairing is fixed in the sources: each is the other’s appointed end.

Later readers have noticed that a serpent biting its own tail, ringed around the world, echoes the ouroboros of Greek and Egyptian alchemical imagery. The visual resemblance is real and often remarked. The sources themselves draw no such equation; whether the Norse figure carries the ouroboros’s meaning of cyclical return, or only its shape, is the reader’s inference rather than the texts’ claim. In the Eddic telling the encircling serpent is less an emblem of eternity than a boundary and a threat — the edge of the ordered world, and the thing waiting at the edge.