Saepes hortum a via dividit.

You can tell from the case endings and the verb.

• saepes is nominative singular here, so it can be the subject
• hortum is accusative singular, so it is the direct object
• a via is a prepositional phrase
• dividit is singular, so it matches a singular subject

So saepes is the thing doing the separating.

Because it is the direct object of dividit.

The verb dividere means to divide or to separate, and the thing directly affected by the action goes in the accusative. Here, the garden is the thing being separated, so Latin uses hortum, the accusative singular of hortus.

• nominative: hortus
• accusative: hortum

So hortum means the garden as the object of the verb.

Because Latin often uses a/ab + ablative to mean from.

With dividere, Latin commonly says:

• aliquid a aliqua re dividere
  to separate something from something

So in this sentence:

• hortum = the garden
• a via = from the road

And via is in the ablative singular because it follows the preposition a.

• nominative: via
• ablative: via

This happens because first-declension nouns often have the same form in the nominative and ablative singular.

Here it means from, not by.

That can confuse English speakers, because a/ab can also mean by with a passive verb, especially when showing the personal agent.

For example:

• ab agricola laudatur = he is praised by the farmer

But this sentence is active, not passive:

• Saepes hortum a via dividit

So here a via means from the road, not by the road in the sense of agent.

Dividit is:

• third person singular
• present tense
• active voice
• indicative mood

It comes from dividere, meaning to divide or to separate.

So dividit means:

• he divides
• she divides
• it divides

In this sentence, the subject is saepes, so the natural English sense is it separates.

Because saepes is a third-declension noun, and third-declension nominative singular forms are less predictable than first- and second-declension ones.

A native English speaker often expects:

• -a for feminine singular
• -us for masculine singular

But third-declension nouns do not work that way. Their nominative singular can have several different endings, including -es.

So saepes can still be singular even though it ends in -es.

In fact, context matters here, because saepes could also look like a plural form. What shows it is singular in this sentence is the singular verb dividit.

Because Latin word order is much more flexible than English word order.

English relies heavily on position:

• The fence separates the garden from the road

Latin relies much more on endings:

• saepes = subject
• hortum = object
• via after a = object of the preposition
• dividit = verb

So Latin can move words around more freely without changing the basic meaning. The verb also often comes at or near the end.

This sentence has a very normal Latin feel:

• subject
• object
• prepositional phrase
• verb

But other orders would still be possible if the writer wanted a different emphasis.

Yes, often it could.

For example, these would still mean essentially the same thing:

• Hortum saepes a via dividit
• A via saepes hortum dividit
• Saepes a via hortum dividit

Because the endings still show each word’s role.

However, the emphasis may change slightly depending on what is placed first or last. Latin writers often use word order to highlight important information, not just to mark grammar.

Because Classical Latin has no articles.

So a noun like hortum can mean:

• a garden
• the garden

and saepes can mean:

• a fence
• the fence

You figure out which is meant from the context. In a simple sentence like this, English usually adds the when translating, but Latin itself does not include it.

Here it is used literally: a fence physically separates one place from another.

But dividere can also be used more broadly, for example:

• dividing land
• separating groups
• distinguishing one thing from another

So this sentence is a good example of a very common Latin pattern:

• X Y a Z dividit
  X separates Y from Z

That pattern is worth remembering.