29
votes
Accepted
Why "ex nihilo" instead of "e nihilo"?
That's actually not a rule. ab and ex can lose their consonant, but in fact it's far more common for them not to. Check out Lewis and Short's entries on them:
ex/e
ex always before vowels, and ...

cmw♦
- 52.2k
20
votes
Accepted
Are the two cums related?
The similarity is a coincidence; these words are unrelated. Etymological dictionaries such as De Vaan's give the following account of the two words:
The earlier form of the conjunction cum is quom; ...
19
votes
Accepted
Would it be good Classical Latin style to always use the preposition "ab" and never "ā"?
I believe that would be considered very odd. Before certain words, ab is almost never used by any author. Consider for example *ab te, which is found 0 times in the Hewlett-Packard repository. If you ...
13
votes
Accepted
What's the correct way to say, in Latin, "creation within God" & "creation through God"?
Here are the Vulgate versions of the two verses you mention:
Colossians 1.16:
quoniam in ipso condita sunt universa in cælis, et in terra, visibilia, et invisibilia, sive throni, sive dominationes, ...
13
votes
Accepted
Can you place "et" inside a prepositional phrase?
An alternative way to phrase the question is to ask whether a preposition should be repeated after et.
I went through a book for all the examples of et used with prepositions in a way that would allow ...
12
votes
Accepted
Translation of “in” as “and”
The passage comes from Cic. Fam. 9.4, namely from a letter to Varro.
Apparently others have translated as you would expect:
If you have a garden in your library, everything will be complete (...
11
votes
Accepted
What is the difference between Ob and Propter?
The causal meaning of these two prepositions developed separately, so the history of their usage is a bit complex. But in Classical Latin and after, while some authors used the two interchangeably, ...
11
votes
Accepted
Prefix chaining in Latin verbs
For what I know, the double prefixation beginning with per- is the most productive (I quote only a few examples):
perincertus
[per+ in + certus] (Sall. hist. 4,1,2 [Gell. 18,4,4]: perincertum ...
11
votes
Accepted
"With respect to" in mathematics
There is one word that seems to fit the bill: quoad. Although this word has a temporal ("as long as") and spatial ("as far as") meaning, Lewis and Short also gives the following meaning:
B.3: With ...
11
votes
Accepted
Semantic difference of ablative and accusative cases when following "in"
Do not only look for “movement” when you see in used with the accusative. In is very versatile and has a lot of meanings that cannot be easily summed up in a few words. A good dictionary will describe ...
11
votes
Accepted
"redire ad" or "redire in"
There's a difference between the two. Using ad properly would indicate that Medus wished to go up to but not necessarily into his native country. This is why it works with people: you go to people, ...

cmw♦
- 52.2k
10
votes
Accepted
Are prepositions really never used with cities?
It was recognized even in antiquity to be solecism:
[Quintilian 1.5.38] To avoid all suspicion of quibbling, I will say that a solecism may occur in one word, but never in a word in isolation. There ...

cmw♦
- 52.2k
10
votes
What is the latin preposition for "Upon"?
“Call upon” is a phrasal verb, which you cannot translate by translating its constituents. The Latin translation will usually not be the same sort of verb+preposition pair as in English. You can look ...
9
votes
What's the correct way to say, in Latin, "creation within God" & "creation through God"?
If I may supplement TKR's answer:
Colossians 1:16 is decidedly ambiguous. The Greek original has:
ὅτι ἐν αὐτῷ ἐκτίσθη τὰ πάντα, τὰ ἐν τοῖς οὐρανοῖς καὶ τὰ ἐπὶ τῆς γῆς, τὰ ὁρατὰ καὶ τὰ ἀόρατα, εἴτε ...
9
votes
Would it be good Classical Latin style to always use the preposition "ab" and never "ā"?
Lewis and Short provide some guidance on the limitations of the pre-consonant use of ab:
[ab] has become the principal form and the one most generally used through all periods—and indeed the only ...
9
votes
Accepted
What underlying semantic notions explain the meaning of 'against' for the preposition 'in'?
What you've neglected (an easy thing to neglect) is the case that "in" governs with each meaning. "In" plus the ablative connotes coherence and inclusion, and it's roughly equivalent to English "in." "...
9
votes
Why did Medieval Latin use "ad" with the accusative instead of just using the dative?
I'm not sure there is a "why", but it probably happened under the influence of contemporary vernacular languages and/or Vulgar Latin, since French, Italian, and Spanish also use more prepositions than ...
9
votes
How do I best translate "A big window into history"?
Whether you say fenestra magna or magna fenestra is up to you – both is absolutely fine in Latin.
If you go with fenestra at all, I recommend using the preposition ad, because there is a precedence ...
9
votes
Accepted
Is ἐν changing to ἐμ or ἐγ only a thing in Attic?
It does not actually state that. It says that when they're used as prefixes:
When the prepositions ἐν and σύν are used as prefixes, they retain these forms when the verb begins with a vowel. When the ...

cmw♦
- 52.2k
8
votes
Would it be good Classical Latin style to always use the preposition "ab" and never "ā"?
Here is a relevant passage from the second-century (CE) grammarian Velius Longus:
antiquos scimus et abs te dixisse: nos contenti sumus a te dicere. scimus ipsos et ab Lucio dixisse: nos observamus ...
8
votes
E pluribus unum or Ex pluribus unum?
The general rule for the use of e and ex as prepositions can be found in Latin grammars like Gildersleeve's:
Ē is used before consonants only, ex before both vowels and consonants. (§417.6)
Lewis ...
8
votes
Are the following "prep. + accusative"'s used for location?
The idea that accusative means motion toward, ablative means location or motion away from, can be a good rule of thumb. There are some prepositions, like in and sub, which can take either case; in ...
8
votes
Which senses does ob have in the following words?
You are mistaking stand-alone preposition ob (which would be used before nouns) with prefix ob- (which was used to derive new words, primarily verbs).
Latin, Greek, German, Slavic languages widely use ...
7
votes
Accepted
Why did Cicero switch from "abs te" to "a te" in his later works?
It seems to be a case of simple regularization. As L&S point out, abs is rarely used before a word other than te; a Packard search yields only ten such cases vs. 277 of abs te (and two of the ten ...
7
votes
Accepted
Can conjunctions be used to join prepositions with the same object?
DRN 2.393: aut quia ni mirum maioribus est elementis /
aut magis hamatis inter se perque plicatis.
This one is somewhat dubious. It could be analysed as an adverb. I think the problem is that ...
7
votes
Accepted
Concerning the Verbal "From"
They're all different uses! Different verbs will have different constructions, and you cannot, as a rule, ever do a one-to-one correspondence based on English's idioms. Take "take away," for example.
...

cmw♦
- 52.2k
7
votes
Accepted
Is 'extra' an adverb or preposition here?
You are correct that extra is a preposition here. Although it can be an adverb, it has a clear object here that would not make syntactical sense otherwise.
This particular argument follows Spinoza's ...
7
votes
Accepted
Why would the praeposition "per" ever take an ablative instead of an accusative complement?
The L&S entry is pretty clear, in my opinion. Per takes the accusative, but it has mistakenly been used with the ablative. It cites two examples from later inscriptions:
Inscr. Miseni Repert. ex ...
7
votes
Accepted
Why is it to say 'paucis post diebus'?
In this case, post is being used as an adverb, not a preposition; essentially, it's being treated as a comparative adverb*, and the ablative paucis diebus is expressing the 'degree of difference,' as ...
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