Aithēr (English notation) Aither

Japanese: Aithēr（英語表記）Aither

…It was a serpent with the heads of a bull and a lion, a winged hybrid with a divine mask on its body, and Ananke (Necessity) and Adrasteia (Inevitable Vengeance) standing nearby. From Kronos came Light (Aithēr), Chaos, and Darkness (Erebos), as well as an androgynous cosmic egg (Ōon). From this came a god with golden wings, a bull's head on his side, and a giant snake on his head. …

From Greek Mythology

…First came Chaos, the void, then Gaia (earth) and its depths, Tartarus, and then Eros, the source of all creation. From Chaos (neuter noun) came the formless beings Erebos (darkness) and Nyx (night), and from the night came Aithēr and Hemera (day), the heavenly spirits that shine. On the other hand, Gaia (female noun) alone gave birth to Uranus (heaven, masculine noun). …

From 【Eggs】

...The egg was later held by a giant snake, from which the ordered universe (cosmos) hatched. The Greek Orphic mythology tells us that Aithēr, the god of the heavens, mated with Chronos or Chaos to create a giant silver egg from which the first hermaphrodite god Prōtogonos (the first-born) or Phanēs (light) was born. In Egyptian mythology, the sun god Ra was born from a golden egg laid by a Nile goose, and the creator god Khnum also spat out an egg from his mouth, which became the source of language.

From [Ether]

…Originally a concept in Greek physics. The elemental matter that makes up the world below the moon, earth, water, air, and fire, was called aiter. In other words, in the Greek view of nature, which did not recognize a vacuum, the celestial world was thought to be filled with aiter (ether). …

*Some of the terminology explanations that mention "Aithēr" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…それは牛とライオンの頭をもつ蛇で，胴には神の面があり，翼をつけた混成物で，その傍にはアナンケAnankē(〈必然〉)とアドラステイアAdrasteia(〈避けがたい復讐〉)が控える。クロノスから光(アイテルAithēr)，カオス，闇(エレボスErebos)が，さらに男女両性具有の宇宙卵(オーオンŌon)が生じた。そこから黄金の翼をもち，脇腹に牛の頭，頭上に巨大な蛇をつけた神が生じた。…

【ギリシア神話】より

…最初は空虚を意味するカオスが，ついでガイア(大地)とその奥底なるタルタロスが，さらにいわばいっさいの生成の根源力としてエロスが生じた。カオス(中性名詞)からは形なきものどものエレボスErebos(闇)とニュクスNyx(夜)とが，そして夜から輝く上天の気アイテルAithērとヘメラHēmera(昼)とが生まれる。他方ガイア(女性名詞)はひとりでウラノス(天，男性名詞)を生む。…

【卵】より

…この卵は後に巨蛇に抱かれ，そこから秩序宇宙(コスモス)が孵化したという。またギリシアのオルフェウス教による神話は，上天の神アイテルAithērがクロノスないしカオスと交わって巨大な銀色の卵をつくり，そこから最初の両性具有神プロトゴノスPrōtogonos(〈最初に生まれた者〉)あるいはファネスPhanēs(〈光明〉)が生まれたと説く。さらにエジプト神話では，ナイル川のガチョウが産んだ黄金の卵から太陽神ラーが誕生し，創造神クヌムKhnumも口から卵を吐きだしこれを言語の源としたと語られている。…