O serviço extraviou a remessa; daí o atraso.

Extraviou is the 3rd person singular of the pretérito perfeito of extraviar.

In this sentence, extraviar means to misplace, lose, or cause to go missing, especially in a transport, postal, or administrative context.

So:

• O serviço extraviou a remessa = The service/company lost the shipment
• It does not usually suggest stealing; it suggests that the item was lost within the system.

This is a fairly formal or logistical verb. In everyday speech, people may also use expressions like:

• perder a encomenda = to lose the parcel
• a encomenda desapareceu = the parcel disappeared

Here o serviço means something like:

• the service
• the delivery service
• the postal/courier service
• the department handling it

Portuguese often allows a somewhat broad institutional subject like this, where English might prefer something more specific, such as:

• the courier lost the shipment
• the postal service misplaced the shipment
• the shipping service lost it

So o serviço extraviou a remessa is a natural way of saying that the organization or system responsible for the shipment is at fault.

Remessa means shipment, consignment, or dispatch. It is more formal and more common in business, logistics, transport, and administration.

By contrast, encomenda is often more common in everyday speech for:

• parcel
• package
• order

So:

• remessa = more formal / shipping-logistics language
• encomenda = more everyday and common for ordinary deliveries

In many contexts they overlap, but remessa sounds more technical.

Here daí means hence, therefore, that’s why, or from that in a logical sense.

So:

• daí o atraso = hence the delay / that’s why there was a delay

This is a compact and slightly elegant way of expressing consequence.

Important: daí does not always mean this. It can also literally mean from there in other contexts.

For example:

• Saí daí agora. = Leave there now.

But in your sentence, it is not literal; it introduces a result.

Because this is an elliptical structure: Portuguese omits words that are understood from the context.

Daí o atraso is short for something like:

• Daí resulta o atraso
• Daí veio o atraso
• Daí surgiu o atraso
• Daí se explica o atraso

But Portuguese often prefers the shorter version, especially in written or formal language.

English does something similar in phrases like:

• hence the delay
• hence the problem

So although there is no explicit verb, the meaning is complete.

The article o points to a specific delay, namely the one being explained by the lost shipment.

So:

• daí o atraso = hence the delay

This is very common in Portuguese. The definite article often appears where English might omit it or where learners do not expect it.

Without the article, daí atraso would sound wrong here.

The semicolon links two closely related parts:

1. O serviço extraviou a remessa
2. daí o atraso

It signals: first statement -> consequence.

A semicolon works well here because the second part depends directly on the first and is not a full independent sentence in the usual way.

You could also see:

• O serviço extraviou a remessa. Daí o atraso.
• O serviço extraviou a remessa, daí o atraso.

But the semicolon gives it a neat, polished written style.

Yes, but the sentence would change slightly in tone and structure.

For example:

• O serviço extraviou a remessa; por isso houve atraso.
• O serviço extraviou a remessa; por isso se atrasou a entrega.

Por isso is very common and straightforward: for that reason / therefore / that’s why.

However, daí o atraso is:

• shorter
• more compact
• slightly more formal or written
• stylistically closer to hence the delay

So both are possible, but they do not sound exactly the same.

Extraviou is pretérito perfeito do indicativo.

It is used because the sentence refers to a completed event in the past:

• the service lost the shipment
• and that caused the delay

So it presents the loss as a finished fact.

Compare:

• extravia = used for habitual action, background description, or an ongoing past context
• extraviou = one completed event

Here extraviou is the natural choice.

Yes, it sounds fairly formal or administrative, especially because of:

• extraviou
• remessa
• daí o atraso

This kind of sentence would fit well in:

• customer service communication
• shipping/logistics reports
• formal written explanations

In more everyday Portuguese, someone might say:

• Perderam a encomenda, por isso houve atraso.
• A encomenda foi extraviada, daí o atraso.
• A transportadora perdeu a encomenda, por isso se atrasou.

So the original sentence is natural, but not especially casual.

Both are natural, but they focus on different things.

• O serviço extraviou a remessa focuses on who was responsible
• A remessa foi extraviada focuses on what happened to the shipment

So:

• O serviço extraviou a remessa; daí o atraso. = The service lost the shipment; hence the delay.

• A remessa foi extraviada; daí o atraso. = The shipment was lost; hence the delay.

The passive version is also very common in formal language.

Yes, daí is used in European Portuguese, including in the logical sense hence / from that / that’s why.

That said, depending on context and style, European Portuguese may also use alternatives such as:

• por isso
• por essa razão
• daí que (in some structures)
• logo

In your sentence, daí o atraso sounds natural and idiomatic in a written, concise style.

In European Portuguese, many unstressed vowels are reduced, so the sentence may sound more compressed than an English speaker expects.

Roughly:

• O serviço extraviou a remessa; daí o atraso.

Points to notice:

• serviço: stress on -vi- → ser-VI-ço
• extraviou: stress on the final -ou
• remessa: stress on -me-
• daí: two syllables, da-Í
• atraso: stress on -tra-

A broad approximation for an English speaker might be:

• u ser-VEE-su esh-tra-vee-OH a r’ME-sa; da-EE u a-TRA-zu

But actual European Portuguese pronunciation is usually more reduced and connected than that.

Not in natural English.

Even though daí can literally mean from there, in this sentence it has a logical meaning, not a spatial one.

So the natural translations are:

• hence the delay
• therefore, the delay
• that’s why there was a delay

A literal translation like from there the delay would miss the idiomatic meaning.