Næturþjónustan kemur í kvöld.

Because Icelandic uses compound nouns very freely, and compounds are usually written as a single word.

So næturþjónustan is made up of:

• nætur- = a form related to nótt/night
• þjónusta = service
• -n = the definite article here

English often prefers separate words, but Icelandic often packs the same idea into one long noun.

Icelandic usually does not use a separate word for the. Instead, the definite article is attached to the end of the noun.

So:

• þjónusta = service
• þjónustan = the service

In næturþjónustan, the the is the final -n. With feminine nouns ending in -a, this is a very common pattern.

In Icelandic compounds, the first noun often appears in a genitive-like linking form rather than in its basic dictionary form.

The base word is nótt = night, but in this compound it becomes nætur-.

So næturþjónusta is literally something like night's service or service of the night, even though in natural English you would just think of it as night service.

You do not always need to translate the internal grammar literally, but it helps to recognize that Icelandic compounds often work this way.

It is in the nominative singular.

That is because it is the subject of the sentence — the thing that comes.

A quick breakdown:

• næturþjónustan = subject
• kemur = verb
• í kvöld = time expression

So the sentence structure is basically [subject] [verb] [time].

Kemur is the 3rd person singular present tense of the verb koma, which means to come.

So:

• ég kem = I come
• þú kemur = you come
• hann/hún/það kemur = he/she/it comes

Here the subject næturþjónustan is singular, so kemur is the correct form.

Because Icelandic, like English, often uses the present tense for future events when the time is already clear from context.

So kemur í kvöld can mean something like:

• comes tonight
• is coming tonight
• arrives tonight

This is especially common for planned, expected, or scheduled events.

Í kvöld is a very common time expression meaning tonight or this evening.

Literally, í often means in, and kvöld means evening, but together í kvöld functions as a set phrase.

Grammatically, kvöld is in the accusative after í here, but since kvöld is a neuter noun, the nominative and accusative forms look the same. So you do not see any visible ending change.

Yes. Icelandic word order is flexible, but it usually follows the verb-second pattern.

The neutral order here is:

• Næturþjónustan kemur í kvöld.

But you could also say:

• Í kvöld kemur næturþjónustan.

That puts more focus on tonight. The important thing is that the finite verb kemur still stays in the second position.

A few useful points:

• æ in Nætur- sounds roughly like the vowel in eye
• þ in þjónustan sounds like th in thing
• j in þjónustan sounds like y in yes
• í sounds like ee
• Icelandic words are usually stressed on the first syllable

A rough English-style approximation of the whole sentence is:

NYE-tur-thyoh-nu-stan KEH-mur ee kvœld

That is only approximate, but it is a helpful starting point.