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Dyḗus (lit. "daylight-sky-god"), also *Dyḗus ph2tḗr (lit. "father daylight-sky-god"), is the reconstructed name of the daylight-sky god in Proto-Indo-European mythology. *Dyēus was conceived as a divine personification of the bright sky of the day and the seat of the gods, the *deywṓs. Associated with the vast diurnal sky and with the fertile rains, *Dyēus was often paired with *Dhéǵhōm, the Earth Mother, in a relationship of union and contrast. While its existence is not directly attested by archaeological or written materials, *Dyēus is considered by scholars the most securely reconstructed deity of the Indo-European pantheon, as identical formulas referring to him can be found among the subsequent Indo-European languages and myths of the Vedic Indo-Aryans, Latins, Greeks, Phrygians, Messapians, Thracians, Illyrians, Albanians and Hittites. The divine name *Dyēus derives from the stem *dyeu-, denoting the "diurnal sky" or the "brightness of the day" (in contrast to the darkness of the night), ultimately from the root *di or dei- ("to shine, be bright"). Cognates in Indo-European languages revolving around the concepts of "day", "sky" and "deity" and sharing the root *dyeu- as an etymon, such as Sanskrit dyumán- 'heavenly, shining, radiant', suggest that Dyēus referred to the vast and bright sky of the day conceived as a divine entity among Proto-Indo-European speakers. A vṛddhi-derivative appears in *deywós ("celestial"), the common word for "god" in Proto-Indo-European. In classic Indo-European, associated with the late Khvalynsk culture (3900–3500), *Dyēus also had the meaning of "Heaven", whereas it denoted "god" in general (or the Sun-god in particular) in the Anatolian tradition. The suffix-derivative *diwyós ("divine") is also attested in Latin, Greek and Sanskrit. The noun *deynos ("day"), interpreted as a back-formation of *deywós, has descendant cognates in Vedic Sanskrit divé-dive ("day by day"), Latin Dies, goddess of the day and counterpart to Greek Hemera, Hittite siwat ("day"), Palaic Tīyat- ("Sun, day"), Ancient Greek endios ("midday"), Old Armenian tiw (տիւ, "bright day"), Old Irish noenden ("nine-day period"), Welsh heddyw ("today"), or Slavic Poludnitsa ("Lady Midday").

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Related concepts (42)

*Dyēus

Messapic language

Messapic (mɛˈsæpɪk,mə-,-ˈseɪ-; also known as Messapian; or as Iapygian) is an extinct Indo-European Paleo-Balkanic language of the southeastern Italian Peninsula, once spoken in Apulia by the Iapygian peoples of the region: the Calabri and Salentini (known collectively as the Messapii), the Peucetians and the Daunians. Messapic was the pre-Roman, non-Italic language of Apulia. It has been preserved in about 600 inscriptions written in an alphabet derived from a Western Greek model and dating from the mid-6th to at least the 2nd century BC, when it went extinct following the Roman conquest of the region.

Sky father

In comparative mythology, sky father is a term for a recurring concept in polytheistic religions of a sky god who is addressed as a "father", often the father of a pantheon and is often either a reigning or former King of the Gods. The concept of "sky father" may also be taken to include Sun gods with similar characteristics, such as Ra. The concept is complementary to an "earth mother".