Eitr

Eitr is a substance in Norse mythology. This liquid substance is the origin of all living things: the first giant Ymir was conceived from eitr. The substance is supposed to be very poisonous and is also produced by Jǫrmungandr (the Miðgarðsormr) and other serpents.

Etymology
The word eitr exists in most North Germanic languages (all derived from the Old Norse language) in Icelandic/Faroese eitur, in Danish edder, in Swedish etter. Cognates also exist in Dutch etter (pus), in German Eiter (pus), in Old Saxon ĕttar, in Old English ăttor. The word is broadly translated: poisonous, evil, bad, angry, sinister etc.

The word is used in common Scandinavian folklore as a synonym for snake venom.

Ymir
In Vafþrúðnismál Óðinn asks the Giant Vafþrúðnir about the origin of Ymir. Vafþrúðnir answers:


 * Ór Élivagom
 * stukko eitrdropar,
 * svá óx, unz varð ór iötunn;
 * þar órar ættir
 * kómu allar saman,
 * því er þat æ allt til atalt.

Rough translation:


 * From Éliwaves
 * Eitrdrops splashed
 * that grew into a giant
 * who begat all families
 * from which all [giants] come
 * that is why we are easily angered

The last line of the stanza in Vafþrúðnismál where Vafþrúðnir says "that is why we are easily angered", is a word-play with the meaning of the word eitr, as it also means anger/angry (similar to "poison a relationship").

Popular culture
In Tomb Raider: Underworld, which features a storyline heavily influenced by Norse mythology, eitr plays an important part in the plot.

In Titan Quest: Ragnarök eitr can be found in Asgard on most creatures.

In 2018's God of War, Kratos' Leviathan Axe is imbued with eitr when he first meets the World Serpent.