Muad'Dib

Muad'Dib /ˌmuːədˈdiːb/ is a fictional species of desert mouse within Frank Herbert's Dune universe. It is also the name for a constellation of stars and is taken as a name by the first novel's hero, Paul Atreides.

In Terminology of the Imperium, the glossary of the 1965 novel Dune, Herbert provides the following definition:

MUAD'DIB: the adapted kangaroo mouse of Arrakis, a creature associated in the Fremen earth-spirit mythology with a design visible on the planet's second moon. This creature is admired by Fremen for its ability to survive in the open desert.

In addition to the moon, there is also a constellation called Muad'Dib in the sky of Arrakis; its tail points to the north, resulting in it being known as "The One Who Points the Way."

Herbert derived the Fremen messianic religion vocabulary from real-world Arabic. In Arabic, مؤدّب mu’addib means "educator," "he who disciplines/teaches manners," or "chastiser";adab or ādāb (أدب/آداب) are "manners" or "literature". In Dune, Herbert writes that the Fremen call the Muad'Dib mouse "instructor-of-boys."

In Dune, when Paul is accepted into the Fremen, he is given the secret "sietch name" (known only to his tribe) Usul, the Fremen word meaning "the base of the pillar." Paul takes "Paul Muad'Dib" as his chosen name of manhood, to be used openly:

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