Artifex monile aureum puellae ostendit.

Because artifex is in the nominative singular, the case normally used for the subject of the sentence.

A common beginner expectation is that a subject will look like -us or -a, but Latin has several declensions, and artifex is a third-declension noun. Its nominative singular is simply artifex.

So even though the form may look unfamiliar, it is still the word doing the action.

Because it is the thing being shown, so it is the direct object of ostendit.

Here monile is accusative singular. The reason it looks the same as the dictionary form is that monile is a neuter noun, and in Latin neuter nominative and accusative are always identical.

So:

• nominative singular: monile
• accusative singular: monile

That is very normal for neuter nouns.

Because Latin adjectives must agree with the noun they modify in:

• gender
• number
• case

The noun monile is:

• neuter
• singular
• accusative

So the adjective must also be:

• neuter
• singular
• accusative

That gives aureum.

So aureum matches monile, not artifex or puellae.

Here puellae is dative singular, meaning to the girl.

With a verb like ostendere, Latin often uses:

• accusative for the thing shown
• dative for the person to whom it is shown

So the sentence has:

• artifex = subject
• monile aureum = direct object
• puellae = indirect object

A learner may notice that puellae could also be genitive singular or nominative plural in some contexts. That is true. But in this sentence, the syntax strongly points to dative singular.

Latin word order is much more flexible than English word order because the case endings show what each word is doing.

So the basic roles are clear from the forms, not just from position:

• artifex = subject
• monile aureum = direct object
• puellae = indirect object
• ostendit = verb

This sentence puts the verb at the end, which is very common in Latin. But other orders are possible without changing the core meaning.

Word order in Latin often changes emphasis more than basic grammatical function.

Because Latin often places an adjective after the noun it describes.

So monile aureum is a perfectly normal way to say golden necklace.

Unlike English, Latin does not require the adjective to come before the noun. You can often move the adjective for style or emphasis, but here the ordinary noun + adjective order is being used.

Because Classical Latin does not have articles like English does.

So a noun like artifex can mean either:

• the craftsman
• a craftsman

depending on context.

The same is true for monile and puellae. Latin leaves that distinction unstated unless the context makes it clear.

Ostendit is a third-person singular active indicative form of ostendere.

The ending -t tells you the verb goes with he/she/it as the subject. Since the subject here is artifex, the verb is singular.

In this sentence it is being understood as shows.

One important detail: the written form ostendit can also be a perfect form in another context, meaning showed or has shown. Latin often relies on context to tell you which tense is meant. In a simple beginner sentence like this, it is usually taken as present unless something suggests otherwise.

Because the verb ending already includes that information.

Ostendit by itself means he/she/it shows. Latin verbs usually tell you the person and number without needing an extra subject pronoun.

That is why Latin can simply say:

• ostendit = he/she/it shows

And if the sentence also includes artifex, that makes the subject explicit.

Monile is a third-declension neuter noun.

That can feel unusual to an English-speaking learner, because many beginner nouns look more familiar in forms like -us, -a, or -um. But third-declension nouns can have a wider variety of nominative forms, and monile is one of them.

Its neuter gender explains two important things in the sentence:

• why the adjective is aureum
• why the accusative singular looks the same as the nominative singular

So monile is a good example of how Latin grammar depends on declension patterns, not just on what an ending looks like at first glance.