Crossword Genius

Mythical figure who sacrificed an eye in order to drink from the well of knowledge (4)

Ross

I believe the answer is:

odin

(Other definitions for odin that I've seen before include "Supreme god of Scandanavian myth" , "Norse god, husband of Frigg, father of Thor" , "Legendary Scandinavian" , "Supreme Norse deity" , "Mythological Norse deity" .)

I've seen this clue in The New York Times.
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