Cum pluvia desiit, uxor et maritus ad villam redierunt.

Here cum is not a preposition. It is a conjunction introducing a subordinate clause.

In this sentence, cum pluvia desiit means when the rain stopped or after the rain stopped.

So the structure is:

• cum pluvia desiit = subordinate time clause
• uxor et maritus ad villam redierunt = main clause

Latin often uses cum this way to set the time for the main action.

Pluvia is the subject of desiit, so it is in the nominative case.

Here Latin expresses the idea as:

• pluvia desiit = the rain stopped

English often says it stopped raining, but Latin can use a noun, pluvia, as the subject instead.

Desiit is:

• 3rd person singular
• perfect tense
• active
• indicative
• from desinere = to stop, to cease

So pluvia desiit means the rain stopped or the rain has stopped, depending on context.

The 3rd person singular makes sense because the subject, pluvia, is singular.

The perfect tense shows a completed action in the past.

So pluvia desiit means that the stopping of the rain is viewed as a finished event. After that completed event, the next action happens: the wife and husband returned home.

This fits the sequence nicely:

1. the rain stopped
2. they returned to the house

Each noun is individually in the nominative singular because each one names one person:

• uxor = wife
• maritus = husband

They are joined by et, making a compound subject:

• uxor et maritus = the wife and husband

Even though each noun is singular by itself, together they form a plural subject, which is why the verb is plural: redierunt.

Because its subject is uxor et maritus, which is a compound subject referring to two people.

Redierunt is:

• 3rd person plural
• perfect tense
• from redire = to return, to go back

So Latin matches the plural idea of the wife and husband with a plural verb.

Redierunt comes from redire, which means to go back or to return.

It is built from:

• re- = back, again
• ire = to go

So redierunt means they returned or they went back.

Latin uses this compound verb because the idea is not just they went, but specifically they went back.

Because ad takes the accusative case when it means movement toward a place.

So:

• villa = nominative or ablative singular
• villam = accusative singular

Since the sentence expresses motion toward the house, Latin uses:

• ad villam = to the house

Grammatically, it means to the villa/house/farmhouse. The exact English word depends on context.

Latin villa often means more than just a modern luxury villa. It can refer to a country house, estate house, or farmhouse.

So if your translation says house or home, that may be a natural English rendering even though the Latin word is villa.

Latin does not always need to state possession when it is obvious from context.

If the sentence means they returned to their house, Latin can simply say ad villam redierunt if the reader already understands whose house it is.

Latin often leaves such details unstated when they are easy to infer.

Yes. Cum can be followed by either the indicative or the subjunctive, depending on the meaning.

Here it is a straightforward time clause, so the indicative is natural:

• cum pluvia desiit = when/after the rain stopped

But in other sentences, cum with the subjunctive can express ideas like:

• since
• although
• background circumstance

So a learner should remember that cum has more than one use.

Latin word order is much more flexible than English word order because Latin uses endings to show grammatical function.

In English, order is very important:

• subject + verb + object

In Latin, endings tell you who is doing what, so the sentence can be arranged more freely.

This sentence is very natural Latin:

• Cum pluvia desiit puts the time setting first
• uxor et maritus gives the subject
• ad villam gives the destination
• redierunt comes at the end, which is very common in Latin

So even though the order feels different from English, the endings make the meaning clear.

The sentence has two clauses:

1. Cum pluvia desiit
2. uxor et maritus ad villam redierunt

The comma helps in modern printed Latin, but even without it, you can see the break because:

• cum introduces a subordinate clause
• desiit completes that clause
• then a new subject, uxor et maritus, begins the main clause

So recognizing cum is a big clue that a subordinate clause is starting.