Graslaukurinn vex hratt.

In Icelandic, the definite article the is usually attached to the end of the noun instead of being written as a separate word.

• graslaukur = chive / grass-onion
• graslaukurinn = the chive

So the ending -inn is doing the job of English the here.

The dictionary form is graslaukur.

That is the indefinite singular form, the one you would normally look up in a dictionary. In this sentence, it appears as graslaukurinn because it is:

• singular
• definite
• nominative (the subject form)

It is a masculine noun.

Here, -inn is the definite article attached to a masculine singular noun in the nominative.

So:

• graslaukur = a chive / chive
• graslaukurinn = the chive

This ending changes depending on gender, number, and case, so you should think of it as part of Icelandic noun inflection, not as one single fixed ending that always looks the same.

Yes, graslaukurinn is grammatically singular.

That can feel a little odd for English speakers, because English often uses chives as a plural-looking word even when talking about the herb in general. Icelandic uses graslaukur as a normal singular noun.

If you wanted an actual plural in Icelandic, you would use forms like:

• graslaukar = chives / chive plants
• graslaukarnir = the chives

So in this sentence, the grammar is singular.

Because the verb is irregular.

The dictionary form is að vaxa = to grow, but the present singular form is vex. Icelandic strong verbs often change their stem vowel.

So here:

• að vaxa = to grow
• vex = grows / is growing

This is something you mostly have to learn as part of the verb’s pattern.

Vex is present tense, and in this sentence it is 3rd person singular because the subject graslaukurinn is singular.

So the sentence is talking about what the chive grows / is growing like now, in a general present-time sense.

Hratt is an adverb, meaning quickly or fast.

It describes how the growing happens:

• Graslaukurinn vex = The chive grows
• Graslaukurinn vex hratt = The chive grows quickly

A useful pattern to notice is that Icelandic adverbs are often the same as the neuter singular form of an adjective. Here the related adjective is hraður = fast / quick, and the adverb is hratt.

Because hratt is an adverb, not an adjective.

Adjectives agree with nouns in gender, number, and case, but adverbs do not. An adverb modifies the verb, not the noun.

So hratt stays the same here because it is describing vex (grows), not graslaukurinn.

It is nominative singular.

That is because graslaukurinn is the subject of the sentence — the thing doing the action of growing.

In a basic sentence like this, the subject is usually in the nominative:

• Graslaukurinn = subject
• vex = verb
• hratt = adverb

Yes. This is a very normal, neutral word order:

• Subject + Verb + Adverb

So:

• Graslaukurinn = subject
• vex = verb
• hratt = adverb

Icelandic word order can change for emphasis, but this version is the straightforward, unmarked one.

Yes. That would be grammatical, but the meaning changes slightly.

• Graslaukurinn vex hratt = The chive grows quickly (a specific chive / the chive)
• Graslaukur vex hratt = Chive grows quickly or a chive grows quickly (indefinite or more general)

So the difference is mainly definite vs. indefinite.