Ég er eiginlega of þreytt til að fara út í kvöld.

Not exactly in the strongest English sense of actually.

In this sentence, eiginlega is often closer to really, honestly, kind of, or to be fair depending on tone. It slightly softens the statement and makes it sound more conversational.

So:

• Ég er of þreytt til að fara út í kvöld. = I’m too tired to go out tonight.
• Ég er eiginlega of þreytt til að fara út í kvöld. = I’m actually / really / kind of too tired to go out tonight.

A very natural English translation might be I’m actually a bit too tired to go out tonight or I’m kind of too tired to go out tonight, depending on context.

No. Icelandic of here means too in the sense of excessively.

So:

• of þreytt = too tired
• of dýrt = too expensive
• of seint = too late

It is not the same word as English of, even though it looks identical.

Because Icelandic adjectives agree with the gender and number of the person being described.

With ég (I), the adjective still reflects the speaker’s gender:

• a man would normally say Ég er of þreyttur ...
• a woman would normally say Ég er of þreytt ...

So this sentence, as written, would usually be said by a female speaker.

This is very common in Icelandic: even with I, adjectives and some participles still show gender.

This is a very common pattern:

of + adjective + til að + infinitive

It means:

too + adjective + to + verb

So here:

• of þreytt = too tired
• til að fara = to go

Together:

• of þreytt til að fara út = too tired to go out

Even though til að often has the sense of in order to, in this pattern the most natural English translation is just to.

Because fara út means to go out.

On its own:

• fara = to go, to leave, to travel

But with út:

• fara út = to go out

So út is important here. Without it, the meaning would be more general:

• fara í kvöld = go tonight
• fara út í kvöld = go out tonight

Í kvöld is the standard Icelandic expression for tonight.

Literally, it is something like in evening, but learners should treat it as a fixed time expression.

Similar expressions are:

• í dag = today
• í morgun = this morning
• í kvöld = tonight

So even if the literal wording feels different from English, the meaning is simply tonight.

Because í kvöld is the normal fixed expression meaning tonight.

You may also see í kvöldi, but that is not the usual neutral way to say tonight in a sentence like this. It can sound more literal, more formal, or more tied to the noun evening itself rather than the everyday time expression.

For most learners, the safest choice is:

• í kvöld = tonight

Because út belongs closely with fara as part of the expression fara út (go out), and the time expression í kvöld comes after that.

So the structure is:

• fara út = verb + particle
• í kvöld = time phrase

That makes fara út í kvöld the most natural neutral order.

Icelandic word order can move around for emphasis, but this version is the ordinary one.

Yes. The sentence is still completely correct without it:

• Ég er of þreytt til að fara út í kvöld.

Leaving out eiginlega makes the sentence more direct and slightly firmer.

Adding eiginlega makes it sound softer, more conversational, or a little less blunt.

Þ is pronounced like the th in think, not like the th in this.

So:

• þreytt begins with the same kind of sound as three

This letter is called thorn. It is one of the Icelandic letters English learners usually notice first.