Malum inter filium et filiam dividendum est.

Dividendum est is a very common Latin way to express necessity or obligation.

• dividendum is a gerundive of dividere = to divide
• est = is

Together, dividendum est means something like:

• must be divided
• is to be divided
• has to be divided

So this is not just saying that the apple is being divided. It says that the apple ought to be divided or needs to be divided.

Because it agrees with malum.

• malum is neuter singular
• the gerundive dividendum must match it in gender, number, and case

So:

• malum = neuter singular nominative
• dividendum = neuter singular nominative

This agreement is exactly like an adjective agreeing with a noun.

Because it is the grammatical subject of est.

Even though English often translates this as The apple must be divided, Latin structures it more literally as:

• The apple is to-be-divided

So malum is the thing being described by dividendum est, and therefore it stands in the nominative.

They are accusative because they follow inter.

The preposition inter takes the accusative case, and it means:

• between
• sometimes among, depending on context

So:

• inter filium et filiam = between the son and the daughter

That is why we get:

• filium, not filio
• filiam, not filia

Latin expresses this idea differently from English.

English may say:

• The apple must be divided between the son and daughter
• or even given to each of them in parts

Latin here uses inter + accusative to show the parties between whom the division takes place.

So inter filium et filiam focuses on the distribution between the two people, not on an indirect object.

Yes. malum can also mean evil or a bad thing, depending on context.

This is because Latin has two different words that look the same in some forms:

• mālum = apple
• malum = evil, misfortune, bad thing

In normal written Latin, vowel length is usually not marked, so the form can be ambiguous on the page. Context tells you which meaning is intended.

In this sentence, if the meaning given is about an apple, then that is the correct interpretation.

Because Latin often expresses must by using the gerundive + esse construction instead of a separate modal verb.

So where English says:

• must be divided

Latin says:

• dividendum est

This is one of the most important idioms to learn in Latin, because it is extremely common.

Yes. Latin often adds the person responsible in the dative case.

For example:

• Patri malum inter filium et filiam dividendum est.

This would mean:

• The father must divide the apple between the son and daughter
• literally, To the father the apple is to be divided between the son and daughter

This is called the dative of agent with the passive periphrastic.

In your sentence, no agent is stated, so it simply means that the division needs to happen.

Latin word order is much freer than English word order, because the endings show the grammatical relationships.

This order is natural and clear:

• Malum first introduces the topic
• inter filium et filiam gives the group between whom the division is made
• dividendum est comes at the end, where Latin often places the verb phrase

But other orders are also possible, such as:

• Malum dividendum est inter filium et filiam
• Inter filium et filiam malum dividendum est

These would mean essentially the same thing, though the emphasis may shift slightly.

Yes. et is the ordinary Latin word for and.

So:

• filium et filiam = the son and the daughter

Latin also has other ways to say and, such as:

• -que attached to the second word
• sometimes ac/atque

But et is perfectly normal and straightforward here.

It is a gerundive, not a gerund.

Why?

Because it agrees with a noun:

• malum ... dividendum

A gerundive is a verbal adjective, so it has gender, number, and case, and it modifies a noun.

A gerund, by contrast, is a verbal noun and does not modify another noun in this way.

So in this sentence, dividendum is clearly a gerundive.

Its form is passive in structure, but its meaning expresses obligation.

Literally:

• The apple is to be divided

That is passive in form, because the apple is receiving the action.

But the point of the sentence is not just passive action; it is necessity:

• The apple must be divided

So you can think of it as the passive periphrastic construction.

Usually with two people, English prefers between:

• between the son and daughter

If there were more than two people, English might prefer among, though Latin can still use inter.

So in this sentence, between is the most natural English choice, because there are exactly two people:

• filium
• filiam