Hálsbólgan er verri í dag, svo ég drekk heitt te.

Hálsbólga is the basic dictionary form meaning sore throat.
Hálsbólgan means the sore throat.

In Icelandic, the definite article is usually added to the end of the noun instead of being a separate word like English the. So this sentence uses the definite form.

Yes. It is made from:

• háls = throat
• bólga = inflammation / swelling

So the word is literally something like throat-inflammation. Icelandic uses compounds very often, and they work much like German compounds. In the definite form, the ending is added to the whole compound: hálsbólgan.

Icelandic often leaves out possessives when the meaning is obvious from context, especially with things closely connected to the speaker, such as body-related problems or personal conditions.

So Hálsbólgan er verri í dag can naturally mean My sore throat is worse today if that is clear from the situation.

If you say hálsbólgan mín, it sounds more explicit and can add emphasis or contrast.

Because the adjective agrees with hálsbólgan.

Here, hálsbólgan is:

• feminine
• singular
• nominative

After er, the adjective still agrees with the subject, so the correct comparative form is verri.

Very roughly:

• masculine/feminine: verri
• neuter: verra

So verri matches hálsbólgan.

Verri is the comparative form meaning worse. It is irregular.

You may find it under adjectives such as:

• vondur = bad
• slæmur = bad

So learners often have to memorize verri separately, because it is not formed in a simple predictable way from the basic adjective.

Í dag is the normal expression for today.

Literally, it looks like in day, but you should learn it as a fixed phrase. The word dag is a case form of dagur (day).

This is one of several very common time expressions in Icelandic that are best learned as whole chunks.

Here svo means so or therefore.

It connects the two clauses as a cause-and-result idea:

• the sore throat is worse today
• so I drink hot tea

In other contexts, svo can have other meanings, but here it is a conjunction linking the two statements.

Because svo here is working like a coordinating conjunction, so the next clause keeps normal main-clause order:

• ég drekk

If you started the clause with a fronted adverbial expression such as þess vegna (therefore), then Icelandic would normally put the verb second:

• Þess vegna drekk ég heitt te.

So in this sentence, svo ég drekk is the expected order.

Drekka is the infinitive, meaning to drink.
Drekk is the present-tense form for I drink.

So:

• að drekka = to drink
• ég drekk = I drink

Icelandic verbs change form according to person and number, so you need the finite form drekk here.

Yes. Very often, Icelandic present tense covers both ideas.

So ég drekk heitt te can mean:

• I drink hot tea
• I’m drinking hot tea

The context tells you whether it is a general habit or something happening right now. English often makes this distinction more clearly than Icelandic does.

Because the adjective has to agree with the noun.

• te is neuter singular
• heitur = hot is the dictionary form
• the matching form here is heitt

So heitt te means hot tea.

Also, te is the direct object of drekk, so it is in the accusative, and the adjective matches that as well. In neuter singular, the form is heitt.

Icelandic does not have a separate indefinite article like English a/an.

So heitt te can simply mean:

• hot tea
• some hot tea

If something is definite, Icelandic usually marks that on the noun itself rather than adding a separate word in front.

That is why you see:

• hálsbólgan = the sore throat
• but just heitt te = hot tea / some hot tea

Yes. In Icelandic, accent marks are part of the spelling and represent different vowel sounds. They are not optional decoration.

So letters like:

• á
• é
• í
• ó

should be learned as distinct vowels.

Also, Icelandic word stress normally falls on the first syllable of the word, so the accents do not work like English-style stress marks.