Mundi Mundus

https://en.m.wikipedia.org/wiki/Axis_mundi
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https://en.m.wikipedia.org/wiki/Anima_mundi
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https://en.m.wikipedia.org/wiki/Unus_mundus
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https://en.m.wikipedia.org/wiki/Characters_of_Devil_May_Cry#Mundus
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mundane (adj.) mid-15c., “of this world,” from Old Frenchmondain “of this world, worldly, earthly, secular;” also “pure, clean; noble, generous” (12c.), from Late Latinmundanus “belonging to the world” (as distinct from the Church), in classical Latin “a citizen of the world, cosmopolite,” from mundus “universe, world,” literally “clean, elegant”; used as a translation of Greek kosmos (see cosmos) in its Pythagorean sense of “the physical universe” (the original sense of the Greek word was “orderly arrangement”). 

Latin mundus also was used of a woman’s “ornaments, dress,” and is related to the adjective mundus “clean, elegant” (used of women’s dress, etc.). Extended sense of “dull, uninteresting” is by 1850. Related:Mundanely. The mundane era was the chronology that began with the supposed epoch of the Creation (famously reckoned as 4004 B.C.E.).beau-monde (n.) also beau monde, “the fashionable world,” 1714, French, from beau (see beau) +monde, from Latin mundus “world” (seemundane).anima mundi (n.) “spiritual essence, distinct from matter and supposed in the philosophy of Pythagoras and Plato to be diffused throughout the universe, organizing and acting through the whole of it,” 1670s, Medieval Latin, literally “soul of the world;” used by Abelard to render Greekpsyche tou kosmou. From fem. of Latinanimus “the rational soul; life; the mental powers, intelligence” (see animus) + genitive of mundus “universe, world” (seemundane).demi-monde (n.) also demimonde, 1855, from French demi-monde “so-so society,” literally “half-world,” from demi- “half” + monde, from Latin mundus “world” (see mundane). 

Popularized by its use as title of a comedy by Alexandre Dumas fils (1824-1895). Dumas’ Demi-Monde “is the link between good and bad society … the world of compromised women, a social limbo, the inmates of which … are perpetually struggling to emerge into the paradise of honest and respectable ladies” [“Fraser’s Magazine,” 1855]. Not properly used of courtesans. Compare 18th-century Englishdemi-rep (1749, the second element short for reputation), defined as “a woman that intrigues with every man she likes, under the name and appearance of virtue … in short, whom every body knows to be what no body calls her” [Fielding].map (n.) 1520s, shortening of Middle Englishmapemounde “map of the world” (late 14c.), and in part from Middle Frenchmappe, shortening of Old Frenchmapemonde, both English and French words from Medieval Latin mappa mundi”map of the world;” first element from Latin mappa “napkin, cloth” (on which maps were drawn), “tablecloth, signal-cloth, flag,” said by Quintilian to be of Punic origin (compare Talmudic Hebrewmappa, contraction of Mishnaic menaphah”a fluttering banner, streaming cloth”) + Latin mundi “of the world,” from mundus”universe, world” (see mundane). Commonly used 17c. in a figurative sense of “epitome; detailed representation.” Toput (something) on the map “bring it to wide attention” is from 1913.America 1507, “the western hemisphere, North and South America,” in Cartographer Martin Waldseemüller’s treatise “Cosmographiae Introductio,” from Modern LatinAmericanus, after Amerigo Vespucci (1454-1512) who made two trips to the New World as a navigator and claimed to have discovered it. His published works put forward the idea that it was a new continent, and he was first to call it Novus Mundus “New World.”
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http://en.uesp.net/wiki/Lore:Mundus
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Melkor or Morgoth was said to have Imbued the World with his Evil Spirit.

Christians sometimes thought of Satan or the Devil as the God of this World and its Governer and Ruler.

Gnostics sometimes also said this.

Sometimes it was said the World was imbued by a spirit or spirits of some sort.

Hades was the Cthonic Underworld God.

Fallen Angels like Azazel and Shemyaza were said to be locked deep under the Earth where people still sought to contact them and their influence remained.

The Sky was often considered a dome and sometimes considered to have a hole or holes, and from these holes were thought to look or drop through elements from a place beyond the dome.

Around the Earth or in it was said to be a writhing serpent or great dragon whose undulations were the cause of Earthquakes and catastrophes like Volcanic eruptions or the dissappearance of water or floods.

There appeared to be a fixed axis in the sky which everything revolved around as if chained, and on the Earth it appeared that people too were in many ways a slave to their circumstances and reality.