プラトンは『クラテュロス』の中で、ゼウスの称号(ゼンとディア)がギリシャ語の「生命」や「〜のため」という言葉とダブることから、「万物に常に生命を与える源」という意味の民間語源を挙げている<ref>[https://books.google.com/books?id=ceOQKf0ZvFMC "Plato's ''Cratylus''{{-"}}] by Plato, ed. by David Sedley, Cambridge University Press, 6 November 2003, [https://books.google.com/books?id=ceOQKf0ZvFMC&lpg=PP1&dq=Plato's%20Cratylus&pg=PA91#v=onepage&q&f=false p. 91]</ref>。この語源は、プラトンの語源を導き出す方法全体とともに、現代の学問では支持されていない<ref>https://archive.org/details/makersofhellascr00geej/mode/2up|pages=[https://archive.org/details/makersofhellascr00geej/mode/2up/page/n303/mode/2up?view=theater 554–555], The Makers of Hellas, C. Griffin, Limited, Jevons Frank Byron, 1903</ref><ref>https://books.google.com/books?id=o1xn5Bb-CacC, Limiting the Arbitrary, isbn:1556197497, Joseph John Earl, 2000</ref>。シケリアのディオドロス・シクロスは、ゼウスが生命の原因(ゼン)であると人間が信じたため、ゼンとも呼ばれたと記している<ref name="auto3">https://www.perseus.tufts.edu/hopper/text?doc=urn:cts:greekLit:tlg0060.tlg001.perseus-grc1:5.72, Diodorus Siculus, Bibliotheca Historica, Books I-V, book 5, chapter 72, www.perseus.tufts.edu</ref>。ラクタンティウスは、彼がゼウスやゼンと呼ばれたのは、彼が生命の与え主であるからではなく、クロノスの子供たちの中で最初に生きたからだと書いている<ref>Lactantius, ''Divine Institutes'' [https://topostext.org/work/543#1.11.1 1.11.1].</ref>。
==Mythology神話 ==
===Birth===
[[File:Idäische Grotte 01.JPG|thumb|"[[Cave of Zeus]]", [[Mount Ida (Crete)|Mount Ida, Crete]]]]
In [[Hesiod]]'s ''[[Theogony]]'' (c. 730 – 700 BC), [[Cronus]], after castrating his father [[Uranus (mythology)|Uranus]],<ref>See Gantz, pp. 10–11; [[Hesiod]], ''[[Theogony]]'' [http://data.perseus.org/citations/urn:cts:greekLit:tlg0020.tlg001.perseus-eng1:139-172 159–83].</ref> becomes the supreme ruler of the cosmos, and weds his sister [[Rhea (mythology)|Rhea]], by whom he begets three daughters and three sons: [[Hestia]], [[Demeter]], [[Hera]], [[Hades]], [[Poseidon]], and lastly, "wise" Zeus, the youngest of the six.<ref>Hard 2004, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA67 p. 67]; Hansen, [https://archive.org/details/handbookofclassi0000hans/page/66/mode/2up?view=theater p. 67]; Tripp, [https://archive.org/details/crowellshandbook00trip/page/604/mode/2up?view=theater s.v. Zeus, p. 605]; Caldwell, [https://archive.org/details/hesiodstheogony00hesi/page/8/mode/2up?view=theater p. 9, table 12]; [[Hesiod]], ''[[Theogony]]'' [http://data.perseus.org/citations/urn:cts:greekLit:tlg0020.tlg001.perseus-eng1:453-491 453–8]. So too [[Bibliotheca (Pseudo-Apollodorus)|Apollodorus]], [http://data.perseus.org/citations/urn:cts:greekLit:tlg0548.tlg001.perseus-eng1:1.1.5 1.1.5]; [[Diodorus Siculus]], [https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/5D*.html#68.1 68.1].</ref> He swallows each child as soon as they are born, having received a prophecy from his parents, [[Gaia (mythology)|Gaia]] and Uranus, that one of his own children is destined to one day overthrow him as he overthrew his father.<ref>Gantz, p. 41; Hard 2004, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA67 p. 67–8]; Grimal, [https://archive.org/details/dictionaryofclas0000grim/page/466/mode/2up?view=theater s.v. Zeus, p. 467]; [[Hesiod]], ''[[Theogony]]'' [http://data.perseus.org/citations/urn:cts:greekLit:tlg0020.tlg001.perseus-eng1:453-491 459–67]. Compare with [[Bibliotheca (Pseudo-Apollodorus)|Apollodorus]], [http://data.perseus.org/citations/urn:cts:greekLit:tlg0548.tlg001.perseus-eng1:1.1.5 1.1.5], who gives a similar account, and [[Diodorus Siculus]], [https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/5D*.html#70.1 70.1–2], who doesn't mention Cronus' parents, but rather says that it was an oracle who gave the prophecy.</ref> This causes Rhea "unceasing grief",<ref>Cf. [[Bibliotheca (Pseudo-Apollodorus)|Apollodorus]], [http://data.perseus.org/citations/urn:cts:greekLit:tlg0548.tlg001.perseus-eng1:1.1.6 1.1.6], who says that Rhea was "enraged".</ref> and upon becoming pregnant with her sixth child, Zeus, she approaches her parents, Gaia and Uranus, seeking a plan to save her child and bring retribution to Cronus.<ref>Hard 2004, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA68 p. 68]; Gantz, p. 41; Smith, [https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.04.0104:entry=zeus-bio-1 s.v. Zeus]; [[Hesiod]], ''[[Theogony]]'' [http://data.perseus.org/citations/urn:cts:greekLit:tlg0020.tlg001.perseus-eng1:453-491 468–73].</ref> Following her parents' instructions, she travels to [[Lyctus]] in [[Crete]], where she gives birth to Zeus,<ref>Hard 2004, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA74 p. 74]; Gantz, p. 41; [[Hesiod]], ''[[Theogony]]'' [http://data.perseus.org/citations/urn:cts:greekLit:tlg0020.tlg001.perseus-eng1:453-491 474–9].</ref> handing the newborn child over to Gaia for her to raise, and Gaia takes him to a cave on Mount Aegaeon.<ref>Hard 2004, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA74 p. 74]; [[Hesiod]], ''[[Theogony]]'' [http://data.perseus.org/citations/urn:cts:greekLit:tlg0020.tlg001.perseus-eng1:453-491 479–84]. According to Hard 2004, the "otherwise unknown" Mount Aegaeon can "presumably ... be identified with one of the various mountains near Lyktos".</ref> Rhea then gives to Cronus, in the place of a child, a stone wrapped in swaddling clothes, which he promptly swallows, unaware that it isn't his son.<ref>Hansen, [https://archive.org/details/handbookofclassi0000hans/page/66/mode/2up?view=theater p. 67]; Hard 2004, [https://books.google.com/books?id=r1Y3xZWVlnIC&pg=PA68 p. 68]; Smith, [https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.04.0104:entry=zeus-bio-1 s.v. Zeus]; Gantz, p. 41; [[Hesiod]], ''[[Theogony]]'' [http://data.perseus.org/citations/urn:cts:greekLit:tlg0020.tlg001.perseus-eng1:453-491 485–91]. For iconographic representations of this scene, see [[Louvre]] [https://collections.louvre.fr/en/ark:/53355/cl010270223 G 366]; Clark, [https://books.google.com/books?id=2gtmbI-v35sC&pg=PA20 p. 20, figure 2.1] and [[Metropolitan Museum of Art]] [https://www.metmuseum.org/art/collection/search/247308 06.1021.144]; ''[[Lexicon Iconographicum Mythologiae Classicae|LIMC]]'' [http://ark.dasch.swiss/ark:/72163/080e-74814fdcbeca1-e 15641]; [[Beazley Archive]] [http://www.beazley.ox.ac.uk/record/D550FF52-B336-4E6F-80BF-822C069CCE23 214648]. According to [[Pausanias (geographer)|Pausanias]], [http://data.perseus.org/citations/urn:cts:greekLit:tlg0525.tlg001.perseus-eng1:9.41.6 9.41.6], this event occurs at Petrachus, a "crag" nearby to [[Chaeronea]] (see West 1966, p. 301 on line 485).</ref>