Puella in prora stat, mater autem in puppi sedet et velum album spectat.

They are both subjects, so they are in the nominative singular.

• puella = the girl
• mater = the mother

Each one is doing the action of its verb:

• Puella ... stat = The girl ... stands
• mater ... sedet = the mother ... sits

A learner may notice that mater does not end in -a like many feminine nouns. That is because it belongs to a different declension. It is still nominative singular even though its ending looks different.

These are all third-person singular present tense verbs.

• stat = stands / is standing
• sedet = sits / is sitting
• spectat = looks at / is looking at

Latin often uses the simple present where English might use either:

• stands or is standing
• sits or is sitting
• looks at or is looking at

The ending -t tells you the subject is he/she/it. So:

• puella ... stat = the girl stands
• mater ... sedet = the mother sits
• mater ... spectat = the mother looks at ...

Because Latin has no articles. There is no separate word for the or a/an.

So:

• puella can mean girl, a girl, or the girl
• mater can mean mother, a mother, or the mother
• velum can mean sail, a sail, or the sail

You decide which English article to use from the context.

Both phrases use in with the ablative to show location:

• in prora = on/in the prow
• in puppi = on/in the stern

The endings are different because the nouns belong to different declensions.

• prora is a first-declension noun, so its ablative singular is prora
• puppis is a third-declension noun, and here its ablative singular is puppi

So the difference is not caused by in changing meaning. It is just normal noun inflection.

Because in with the ablative usually means in/on in the sense of location.

Here the girl and the mother are already in a place:

• in prora = in/on the prow
• in puppi = in/on the stern

A very important contrast is:

• in + ablative = location (in/on, where?)
• in + accusative = motion into/onto (into/onto, where to?)

So if someone were moving into a place, Latin would often use in + accusative instead.

They are parts of a ship.

• prora = the prow, the front of the ship
• puppis = the stern, the back of the ship

So the sentence places the two people in different parts of the ship:

• the girl is at the front
• the mother is at the back

That contrast helps the picture in the sentence feel more vivid.

autem usually means however, but, or on the other hand.

In this sentence:

• Puella in prora stat, mater autem in puppi sedet ...
• The girl stands at the prow, but the mother sits at the stern ...

A very common feature of Latin is that autem often comes second in its clause, not first. So instead of beginning the clause, it follows the first word:

• mater autem = the mother, however / but the mother

This is perfectly normal Latin word order.

Because the same subject, mater, does both actions.

• mater ... sedet
• et ... spectat

So the mother:

1. sits
2. looks at the white sail

Latin does not need to repeat mater before spectat, because it is understood that the same subject continues unless something indicates otherwise.

et means and. Here it connects the two actions done by the mother:

• sedet
• spectat

So:

• mater autem in puppi sedet et velum album spectat
• but the mother sits at the stern and looks at the white sail

It does not connect the girl and the mother. That contrast is handled by autem.

Because album must agree with velum.

• velum is neuter singular
• so the adjective must also be neuter singular
• therefore: album

This is called adjective agreement. In Latin, adjectives agree with the nouns they describe in:

• gender
• number
• case

So:

• velum album = white sail

If the noun were feminine singular, the adjective form would be different, such as alba.

It is accusative singular, because it is the direct object of spectat.

The mother is looking at something:

• mater ... velum album spectat
• the mother looks at the white sail

The thing being looked at is the direct object, so Latin puts it in the accusative.

A learner may notice that velum looks the same in the nominative and accusative singular. That is normal for many neuter nouns:

• nominative singular: velum
• accusative singular: velum

The adjective album matches it.

Yes, it could come before. Latin word order is much more flexible than English word order.

So both of these are possible:

• velum album
• album velum

Both mean the white sail.

In this sentence, velum album is a natural and straightforward order. Latin often places adjectives either before or after the noun, depending on style, emphasis, and habit.

Latin word order is flexible, because the endings show the grammatical roles. English depends much more on word order.

This sentence is:

• Puella in prora stat, mater autem in puppi sedet et velum album spectat.

A more English-like arrangement might be:

• Puella stat in prora, mater autem sedet in puppi et spectat velum album.

That would still be understandable Latin.

The actual order helps present the scene smoothly:

• first the girl and where she is
• then the mother, contrasted with her
• then what the mother is doing

So Latin word order often reflects emphasis and flow, not just grammar.

They describe different positions:

• stat = stands
• sedet = sits

So the sentence is not just telling you where each person is; it also tells you their posture:

• the girl is standing
• the mother is sitting

Latin often uses very concrete verbs like this, which makes the scene easy to picture.

Not exactly. spectat usually means looks at, watches, or observes rather than merely sees.

So:

• videt would often mean sees
• spectat suggests a more deliberate act of looking

In this sentence, spectat implies that the mother is actively looking at the sail.

In English, on is usually more natural for ship parts like these:

• in prora = on the prow
• in puppi = at/on the stern

But Latin in covers a range that English may express with in, on, or sometimes at, depending on context.

So you should not expect a one-for-one translation every time. The important thing is that in + ablative here marks position.

Because Latin verb endings already include the subject information.

• spectat already means he/she/it looks at
• in context, it clearly refers to mater

Latin often leaves out subject pronouns unless they are needed for emphasis or contrast.

So instead of saying something like she looks at, Latin simply says spectat, and the ending plus the context do the work.