Halló, ertu heima?

Because Icelandic usually changes the word order in yes/no questions.

• Statement: Þú ert heima. = You are at home.
• Question: Ertu heima? = Are you at home?

In the question, the verb comes first. Also, ert + þú is very commonly written together as ertu.

Ertu = ert + þú

• ert = are (2nd person singular of vera, to be)
• þú = you (singular)

So ertu literally means something like are you.

This kind of combination is very common in Icelandic:

• Ertu... = Are you...
• Geturðu... = Can you...
• Viltu... = Do you want... / Would you like...

Because heima means at home (location), while heim usually means home in the sense of toward home (direction).

Compare:

• Ég er heima. = I am at home.
• Ég fer heim. = I’m going home.

So in Ertu heima?, the speaker is asking about where someone is now, not where they are going.

Here, heima is best thought of as an adverb of place.

It describes location:

• vera heima = to be at home

It does not change for gender, number, or case the way many adjectives do.

A simple learner-friendly guide is:

• Halló ≈ ha-LOH
• ertu ≈ ER-tu
• heima ≈ HAY-ma

A few pronunciation notes:

• ó is a long vowel, roughly like o in go.
• ei in heima sounds roughly like ay in say.
• The r in Icelandic is usually rolled or tapped.
• Stress is normally on the first syllable in Icelandic words.

Yes. Halló is a normal way to say hello, especially:

• when answering the phone
• when getting someone’s attention
• in casual conversation

So Halló, ertu heima? sounds natural, especially in speech or in a phone/message context.

Yes, absolutely.

Halló is just the greeting. The core question is:

• Ertu heima? = Are you at home?

If the conversation has already started, or if you are texting someone, you would often use just Ertu heima?

It is informal/neutral singular because it uses þú.

Icelandic uses:

• þú = you (one person)
• þið = you (more than one person)

There is no everyday formal you exactly like some other European languages have. So þú is normal in most situations.

If you were asking more than one person, you would say:

• Eruð þið heima? = Are you (plural) at home?

In many very common question forms, Icelandic often writes the verb and þú together as one unit.

So instead of:

• Ert þú heima?

you will very often see:

• Ertu heima?

Both are understandable, but ertu is the normal, natural form.

Yes, it sounds very natural in everyday speech.

It could be used:

• on the phone
• in a text message
• when checking whether someone is at home before visiting

It is short, idiomatic, and very common.

You would use the plural form:

• Halló, eruð þið heima?

Breakdown:

• eruð = are (plural form here)
• þið = you (plural)
• heima = at home

So:

• singular: Halló, ertu heima?
• plural: Halló, eruð þið heima?

Not necessarily. Heima usually means at home, but whose home is understood from context.

For example, it can mean:

• at your own home
• at the home where you are staying
• sometimes simply not out

So Ertu heima? is often just asking whether the person is currently at their place.

The dictionary form is vera, which means to be.

Ert is one present-tense form of vera. For example:

• ég er = I am
• þú ert = you are
• hann/hún/það er = he/she/it is

So in ertu, the part ert comes from the verb vera.