Interlunium noctem obscuram facit.

Interlunium is nominative singular, and it is the subject of facit.

A beginner might wonder how we can tell, since interlunium could also look like an accusative form. That is because it is a neuter second-declension noun, and in neuter nouns the nominative and accusative singular often have the same form.

We know it is the subject because:

• facit is singular, so it needs a singular subject
• noctem obscuram is clearly accusative, so that part is the object
• therefore interlunium is functioning as the thing doing the action

Noctem is accusative because it is the direct object of facit.

The verb facere often means to make or to cause, and the thing being made or affected goes into the accusative. So here:

• interlunium = subject
• facit = makes
• noctem = the night, as the thing affected

So Latin is structurally doing something like:

• Interlunium makes the night dark.

It is obscuram because it agrees with noctem, not with interlunium.

Both noctem and obscuram are:

• accusative
• singular
• feminine

That agreement shows that obscuram describes noctem.

If it were obscura, that would be nominative feminine singular, which would not match noctem.

It is doing both at once.

Grammatically, obscuram agrees with noctem, so it is an adjective connected to it. But in meaning, it works as a predicate accusative or object complement: it tells you what the object is made to be.

So the sense is not just:

• a dark night

but more specifically:

• makes the night dark

This is a very common pattern after verbs like facere:

• aliquem beatum facere = to make someone happy
• urbem magnam facere = to make the city great

So noctem obscuram facit means it makes the night dark.

Because the subject, interlunium, is singular.

Facit means he/she/it makes or makes. Here it is it makes, because the subject is a thing, not a person.

So:

• interlunium = singular subject
• facit = singular verb

If the subject were plural, you would expect faciunt instead.

Facit is present tense.

More exactly, it is:

• third person
• singular
• present active indicative

So it means:

• makes
• does make

Depending on context, English might translate it in different ways, but the basic tense is present.

Latin usually does not have articles like English the or a/an.

So a Latin noun like noctem can mean:

• night
• the night
• a night

You decide from context which English translation is best.

That means Interlunium noctem obscuram facit could be translated with the in English even though no separate Latin word is present.

Yes, the word order is normal, but Latin word order is much more flexible than English word order.

This sentence has:

• subject: Interlunium
• object + adjective: noctem obscuram
• verb: facit

That is a very natural Latin arrangement.

But Latin could also say things like:

• Interlunium obscuram noctem facit
• Noctem obscuram interlunium facit
• Obscuram noctem facit interlunium

The cases tell you the grammar, so the meaning stays basically the same. Different word orders can shift emphasis.

Yes, it could come before it.

Latin adjectives can come either before or after the noun. So both of these are possible:

• noctem obscuram
• obscuram noctem

The choice often depends on style, rhythm, or emphasis rather than a big difference in meaning.

For a learner, the important thing is to notice the agreement:

• noctem = accusative singular feminine
• obscuram = accusative singular feminine

That tells you they belong together no matter where they appear.

Interlunium is a neuter second-declension noun.

That helps explain its form:

• nominative singular: interlunium
• accusative singular: interlunium

Because it is neuter, those two cases look the same.

A learner may need to be especially careful with neuter nouns, because you cannot identify the case just from the ending as easily as with some masculine or feminine nouns. You have to look at the role of the word in the sentence.

The more exact grammatical sense is Interlunium makes the night dark.

That is because obscuram is not just giving a label to noctem; it is completing the idea of what the night is made to be.

So:

• makes a dark night is a possible loose English rendering
• makes the night dark is closer to the Latin structure

In other words, Latin is expressing:

• object: the night
• result: dark

That is why makes the night dark is usually the best way to understand the grammar.