The word Jûpiter, or better Jup-piter, is for Jus-piter, composed of _pater_ and of _Jus_, the Latin contraction of the Sanscrit _Dyaus_, of the Greek Ζεύς: Juppiter is then the exact equivalent of Ζεὺς πατήρ, and the word has even preserved more strongly than Zeus the sense of its early meaning; _sub Jove_ signifies "under the heavens;" the hunter awaits the marsian boar, heedless of the cold or snow, _sub Jove frigido_, "under the cold Jupiter, under the cold sky." Dyaus is also in Latin, as it is in Sanscrit, the name of the brilliant sky: "Behold," exclaims old Ennius, "above thy head this luminous space which all invoke under the name of Jupiter:" "Aspice hoc sublime candens quem invocant omnes Jovem." Varuna, like his European brethren, has been, and is yet, a material god, and a material god of the same kind, a god of heaven. This is why the sun is his eye, why the sun, "the beautiful bird which flies in the firmament," is "his golden-winged messenger;"[49] why the celestial rivers flow in the hollow of his mouth, as in the hollow of a reed; why everywhere visible, by turns full of light and of darkness, by turns he infolds himself in the night, and irradiates the dawns, and by turns clothes himself in the white garments and in the black ones. Like Zeus, and from the same cause, he gathers together the clouds, he turns the sack that contains the rains, and lets it loose upside down on the two worlds; he inundates the heaven and the earth, he clothes the mountains with a watery garb, and his blood-red eyes unceasingly furrow the watery dwelling with their twinkling flashes. As Zeus is the father of Athênê, he is the father of Atharvan, "the Fire-God," of Bhrigu, "the Thunderer"--that is to say, of Agni, of the lightning. Agni himself is brought forth "from his belly in the waters," like a male Athênê. Finally, like Zeus, like Jupiter, he bears in his very name the expression of what he is; and the Sanscrit Varuna is the exact phonetic representative of Οὐρανός, sky.