Origin: Old Norse
Meaning: the Anglicized form of Old Norse Óðinn meaning "inspiration, frenzy, rage, ecstasy," from óðr plus the suffix -inn, a masculine definite article which, when added to another word, means something like "master of" so essentially meaning "master of ecstasy".
It's also a cognate of Anglo-Saxon Woden and Old High German Wotan from *Woðanaz meaning "poetic fury" though it's also been related to other meanings such as "seer, prophet" and "possessed".
In Norse mythology, Odin is the chief god who not only presides over magic, wisdom, learning, death and war, but also seems to be a complex character within the pantheon. Depicted with one eye and a long beard, Odin is supposed to be killed by the wolf Fenrir at the end of the world known as Ragnarok.