Eftir lendinguna fórum við í gegnum tollinn og sóttum farangurinn.

Because Icelandic main clauses usually follow a verb-second pattern.

Here, Eftir lendinguna comes first, so the finite verb fórum has to come next, and the subject við comes after it:

Eftir lendinguna + fórum + við ...

If the sentence started with við, then Við fórum ... would be normal. So the word order changes because of what is placed first in the sentence.

eftir means after here.

lendinguna is the noun lending (landing) with the definite article attached, so the phrase means after the landing.

In this time expression, eftir is followed by the accusative, and lendinguna is the definite singular accusative form of lending.

Because Icelandic normally uses a suffixed definite article.

So:

• lendinguna = the landing
• tollinn = the customs/checkpoint
• farangurinn = the luggage

Instead of putting a separate word before the noun, Icelandic usually attaches the to the end of the noun.

fórum comes from the infinitive fara, meaning to go or to travel.

fórum means we went. It is a past-tense form, and it is irregular, so the stem changes from far- to fór-.

No. í gegnum is a fixed expression meaning through.

So í gegnum tollinn means through customs.

It is best to learn í gegnum as a unit rather than trying to translate each word separately every time.

Because Icelandic uses tollur in the singular for the customs checkpoint or customs control.

So even though English says customs, Icelandic says tollinn in this kind of sentence.

This is a vocabulary difference between the two languages, not a mistake.

sóttum comes from sækja, which means to fetch, to collect, or to pick up.

So sóttum farangurinn means we picked up the luggage.

Like fórum, this verb changes quite a bit in the past tense, so it is worth learning as a pattern:

• sækja = to pick up / collect
• sótti = picked up
• sóttum = we picked up

Because the same subject við applies to both verbs:

• fórum = we went
• sóttum = we picked up

Icelandic, like English, often mentions the subject once and then uses it for the coordinated verb that follows:

we went through customs and picked up the luggage

Repeating við would usually sound unnecessary unless you wanted special emphasis.

farangur usually means luggage or baggage as a collective idea.

So farangurinn here means the luggage—the travelers’ bags as a whole—not necessarily one single suitcase.

In airport situations, this is the normal word for baggage/luggage.

Yes, but then the structure would be a little different.

For example:

Við fórum í gegnum tollinn og sóttum farangurinn eftir lendinguna.

That is grammatical. But the original sentence starts with Eftir lendinguna to set the time frame first: After the landing...

Once that phrase is placed first, Icelandic puts the verb second, which gives:

Eftir lendinguna fórum við ...