The nominative Iuppiter, for Iūpiter (with shift of the length from vowel to consonant per the "littera" rule), comes from the vocative combined with pater, and essentially meant "father Jove"; from Proto-Italic *djous patēr, from *djous (“day, sky”) + *patēr (“father”), from Proto-Indo-European *dyḗws (literally “the bright one”), root nomen agentis from *dyew- (“to be bright, day sky”), and *ph₂tḗr (“father”). Cognate with Umbrian 𐌉𐌖𐌐𐌀𐌕𐌄𐌓 (iupater), and in other branches of Indo-European Sanskrit द्यौष्पितृ (dyáuṣ-pitṛ́), Ancient Greek Ζεῦ πάτερ (Zeû páter, “o father Zeus”). Equivalent to diēs (cf. Iovis) + pater.
The oblique cases Iov-, Iovis continue the inflection of Proto-Indo-European *dyḗws. Cognates are Latin diēs (originating from the accusative case of *djous) and Ancient Greek Ζεύς (Zeús).
Iuppiter m (genitive Iovis); third declension
Third-declension noun.
singular | plural | |
---|---|---|
nominative | Iuppiter | Iovēs |
genitive | Iovis | Iovum |
dative | Iovī | Iovibus |
accusative | Iovem | Iovēs |
ablative | Iove | Iovibus |
vocative | Iuppiter | Iovēs |
Iuppiter