Anu

Religion in NetHack
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Anu is the lawful god of the Caveman pantheon.

Encyclopedia entry

Anu was the Babylonian god of the heavens, the monarch of
the north star. He was the oldest of the Babylonian gods,
the father of all gods, and the ruler of heaven and destiny.
Anu features strongly in the _atiku_ festival in
Babylon, Uruk and other cities.