Latin Inflection 
Would it be possible for someone to list the many other alternate forms? E.G. deum instead of deōrum? I am uncertain as to which vowels are long and which are short, or I would list it myself. (What I'm talking about: nom. dei, dii, & di; dat. deis, diis, & dis; etc.) Furthermore, is there any truth to the suggestion that deus is somehow related to Ζεύς? Medellia 04:18, 13 October 2006 (UTC)
- I've heard of the deus-Ζεύς connection more than once, possibly both derived from the Proto-Indo-European dyeu- (to shine). bd2412 T 12:55, 13 October 2006 (UTC)
- Yes, Latin deus and Greek Ζεύς have the same source: Greek Ζεύς < PIE *deiwos (god) < PIE base *dei- (to shine); and Latin deus < PIE *deiwos (god) < PIE base *dei- (to shine). They are cognate with divine, deify, and Hindi deva. Greek θεός, OTOH, is from PIE base *dhes-, cognate with fair (as in state fair), feast, and festive. —Stephen 08:07, 14 October 2006 (UTC)
Deus vocative = dive?? 
Response: There is a great deal of uncertainity as to what exactly is the vocative of "deus." Many believe that it is simply "deus," others insist "dee," still others "dive," and some even protest that that form would not have been used in classical Latin.
Allen and Greenough (sec. 49g) say that it does not occur in classical Latin but is said to have been "dee," following the logical rules, although it does not sound terrbily great. Lodge says that in common discourse "deus" would have been used. "Dive," from the ancient Indo-European root, has been another suggestion. The Oxford Latin Dictionary, however, which is always right, says that it is "deus." See makeshift bibliography for an even better explaination.
Information from JSTOR article: Classical Philology (a journal): article entitled "the vocative of deus and its problems." http://links.jstor.org/sici?sici=0009-837X%28199704%2992%3A2%3C138%3ATVODAI%3E2.0.CO%3B2-Y&size=LARGE&origin=JSTOR-enlargePage
- I agree with you. The vocative singular may be considered to be deus or it may be said to be lacking (which amounts to the same thing). —Stephen 01:53, 5 December 2007 (UTC)
I would think that this word derives from deus. In the Fideism Wikipedia it reads that "fideism comes from fides, the Latin word for faith, and literally means faith-ism" sourced with the Stanford Encyclopedia of Philosophy. Since fides presently lacks etymology, could someone please look this up somewhere? __meco 13:53, 3 March 2008 (UTC)
Genitive plural latin form deum is used in poetry only (Franco Villa, Nuovo Maiorum sermo, ed. Paravia p. 70, isbn 88.395.0170.3). --Pequod76 14:45, 17 October 2011 (UTC)