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Dyēus or Dyēus Phter (Proto-Indo-European: *dyḗws ph₂tḗr, also *Dyḗus Ph2tḗr, *Dyḗus Pḥatḗr, or Dyēus Pətḗr, alternatively spelled dyēws) is believed to have been the chief deity in Proto-Indo-European mythology. Part of a larger pantheon, he was the god of the daylit sky, and his position may have mirrored the position of the patriarch or monarch in Proto-Indo-European society.
This deity is not directly attested; rather, scholars have reconstructed this deity from the languages and cultures of later Indo-European peoples such as the Greeks, Latins, and Indo-Aryans. According to this scholarly reconstruction, Dyeus was known as Dyḗus Ph2tḗr, literally "sky father" or "shining father", as reflected in Latin Iūpiter, Diēspiter, possibly Dis Pater and deus pater, Greek Zeus Pater, Vedic Dyáuṣ Pitṛ́. As the pantheons of the individual mythologies related to Proto-Indo-European religion evolved, attributes of Dyeus seem to have been redistributed to other deities. In Greek and Roman mythology, Dyeus remained the chief god; however, in Vedic mythology, the etymological continuant of Dyeus became a very abstract god, and his original attributes and dominance over other gods appear to have been transferred to gods such as Agni or Indra.
Later figures etymologically connected with DyeusEdit
- In Greek mythology Zeus ([zdeǔ̯s])
- In Roman mythology Jupiter (from *Iou-pater or *Ious-pater)
- In Historical Vedic religion Dyáuṣ Pitṛ́
- Dionysus, especially with the Thracians and Sabines
- Possibly Dis Pater (although he is more connected with the Greco-Roman Pluto theologically)
Rooted in the related but distinct Indo-European word *deiwos is the Latin word for deity, deus. The Latin word is also continued in English "divine" and "deity". The Old English word for Tuesday, "Tiwesdæg", means "Tiw's Day", while in Old Norse tívar may be continued in the toponym Tiveden ("Wood of the Gods", or of Týr).
The following names derive from the related *deiwos:
- Germanic Tīwaz (known as Týr in Old Norse)
- Latin Deus (originally used to address Jupiter, but later adopted as the name of God)
- Indo-Aryan deva: Vedic/Puranic deva, Buddhist deva
- Armenian: Դիւցազն (diwtsazn) (epic hero, demigod), դիւց (dits), դիւք (diq) (Gods), դեւ (dew) (initially - god, in post-Christian era - spirit, demon); also տիւ (tiw) (God)
- Iranic daeva, daiva, diw, etc.
- Baltic Dievas, deivė (goddess)
- Celtic e.g. Gaulish Dēuos, Gaelic dia, Welsh duw
- Slavic div (genitive divese; "miracle")
- Irish Dagda, from *Dago-deiwos meaning "the good god" or "Shining God"
- Possibly the Lusitanian Reve.
Although some of the more iconic reflexes of Dyeus are storm deities, such as Zeus and Jupiter, this is thought to be a late development exclusive to Mediterranean traditions, probably derived from syncretism with Canaanite deities and Perkwunos. The deity's original domain was over the daylight sky, and indeed reflexes emphasise this connection to light: Istanu (Tiyaz) is a solar deity (though this name may actually refer to a female sun goddess), Helios is often referred to as the "eye of Zeus", in Romanian paganism the Sun is similarly called "God's eye" (exact equivalent of Armenian ակն տիւական akn tiwakan - "eye of God") and in Indo-Iranian tradition Surya/Hvare-khshaeta is similarly associated with Ahura Mazda. Even in Roman tradition, Jupiter often is only associated with diurnal lightning at most, while Summanus is a deity responsible for nocturnal lightning or storms as a whole.
As an ordinary nounEdit
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Dyēus's name also likely means "the daytime sky":
- In Sanskrit as div- (nominative singular dyāus with vrddhi), its singular means "the sky" and its plural means "days".
- Its accusative form *dyēm became Latin diem "day", which later gave rise to a new nominative diēs. The original nominative survives as diūs in a few fixed expressions.
- Finnish taivas, Estonian taevas, Livonian tōvaz etc. (from Proto-Finnic *taivas), meaning "heaven" or "sky," are likely rooted in the Indo-European word. The neighboring Baltic Dievas or Germanic Tiwaz are possible sources, but the Indo-Iranian *daivas accords better in both form and meaning. Similar origin has been proposed for the word family represented by Finnish toivoa "to hope" (originally "to pray from gods").
- Old Irish día could mean either "God" or "day"; these give rise to the modern Irish dia and Dé / Scottish Gaelic di- respectively.
- Russian дивный' "divine"
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