Scutum e ferro factum est.

Scutum is nominative singular.

It is the subject of the sentence: the thing that was made.

A learner may expect the subject to come first in Latin sometimes, and here it does:

• scutum = the shield

Because scutum is a neuter noun, other words that describe it will also appear in neuter singular form if they agree with it.

Because factum has to agree with scutum.

• scutum is neuter
• scutum is singular
• scutum is nominative

So the participle must also be:

• neuter
• singular
• nominative

That gives factum.

If the noun were masculine, you would expect factus.
If it were feminine, you would expect facta.

Factum is the perfect passive participle of faciō, which means to make or to do.

So factum means made.

In this sentence, it combines with est to form a perfect passive verb:

• factum est = was made / has been made

This is a very common Latin pattern:

• perfect passive participle + a form of sum

Est is the 3rd person singular present form of sum, meaning is.

When Latin forms the perfect passive, it uses:

• a perfect passive participle
• plus a form of sum

So:

• factum est literally looks like made is
• but in normal English it means was made or has been made

Because the subject is singular (scutum), Latin uses singular est, not plural sunt.

It can mean either, depending on context.

Latin perfect passive indicative often covers both:

• was made
• has been made

English chooses between those based on style and context. In a simple sentence like this, was made is usually the most natural translation, but has been made is also grammatically possible.

E means out of or from, and it takes the ablative case.

The noun ferrum means iron, but after e/ex it becomes ferro, which is the ablative singular form.

So:

• ferrum = iron as a dictionary form
• e ferro = out of iron / of iron

This is a common way in Latin to express the material something is made from.

They are two forms of the same preposition.

Both mean:

• out of
• from

In many texts:

• ex is often used before vowels
• e is often used before consonants

Since ferro begins with f, e ferro is perfectly normal.

You may also see ex ferro in some Latin; the meaning is the same.

Because the preposition e/ex always takes the ablative case.

That is just how the preposition works:

• e + ablative
• ex + ablative

So ferro is not a special form used only for materials; it is the normal ablative singular after e/ex.

Yes, but it is not exactly the same structure.

• scutum ferreum = an iron shield
• scutum e ferro factum est = the shield was made of iron

The first uses an adjective (ferreum, iron).
The second uses a prepositional phrase (e ferro, out of iron) and a passive verb (was made).

Both can express similar ideas, but this sentence especially highlights the material it was made from.

Yes, Latin word order is much freer than English word order.

This sentence is:

• Scutum = subject
• e ferro = prepositional phrase
• factum est = verb

That is a perfectly normal order, but Latin could rearrange it in other ways, for example:

• E ferro scutum factum est
• Scutum factum est e ferro

The meaning would stay basically the same because the endings show the grammatical relationships.
Word order in Latin often changes for emphasis, style, or rhythm rather than basic grammar.

Yes. Scutum is a second-declension neuter noun.

That means it follows the typical neuter pattern:

• nominative singular: scutum
• accusative singular: scutum
• nominative plural: scuta
• accusative plural: scuta

A useful rule is that neuter nominative and accusative are always the same, and in the plural they usually end in -a.

That is why recognizing scutum as neuter is helpful for understanding why the sentence has factum.

It is a passive sentence.

The active version would be something like:

• Aliquis scutum e ferro fecit = Someone made the shield out of iron

But Latin instead says:

• Scutum e ferro factum est = The shield was made out of iron

So the sentence focuses on the thing made, not on the person who made it.

With a personal agent, Latin usually uses:

• ab or ā
  • ablative

For example:

• Scutum e ferro ab artifice factum est = The shield was made out of iron by the craftsman

So:

• e ferro tells you the material
• ab artifice tells you the agent who performed the action

That distinction is very useful:

• e/ex = out of, from
• ab/ā = by in passive sentences