[2] Dyauṣ stems from Proto-Indo-Iranian *dyā́wš, from the Proto-Indo-European (PIE) daylight-sky god *Dyēus, and is cognate with the Greek Διας – Zeus Patēr, Illyrian Dei-pátrous, and Latin Jupiter (from Old Latin Dies piter Djous patēr), stemming from the PIE Dyḗus ph₂tḗr ("Daylight-sky Father").

[3] The noun dyaús (when used without the pitṛ́ 'father') refers to the daylight sky, and occurs frequently in the Rigveda, as an entity.

[4] Dyáuṣ Pitṛ́ appears in hymns with Prithvi Mata 'Mother Earth' in the ancient Vedic scriptures of Hinduism.

[5] In the Ṛg·veda, Dyáuṣ Pitṛ́ appears in verses 1.89.4, 1.90.7, 1.164.33, 1.191.6, 4.1.10. and 4.17.4[6] He is also referred to under different theonyms: Dyavaprithvi, for example, is a dvandva compound combining 'heaven' and 'earth' as Dyauṣ and Prithvi.

[7] Dyauṣ is also known for the rape of his own daughter, which, according to Jamison and Brereton (2014), is vaguely but vividly mentioned in the Rigveda.