Hún þorir að tala íslensku við hvern sem er.

Þorir is the 3rd person singular present form of the verb að þora, which means to dare.

So:

• að þora = to dare
• hún þorir = she dares

In this sentence, it has the sense of having the courage/confidence to do something.

Examples:

• Ég þori ekki. = I don’t dare.
• Hann þorir að spyrja. = He dares to ask.

Here að is the infinitive marker, like English to in to speak.

So:

• að tala = to speak

After þora, Icelandic normally uses að + infinitive:

• þora að tala = dare to speak
• þora að fara = dare to go

This að is not the same as the preposition að meaning to/toward in other contexts.

Because the verb tala usually takes the language in the accusative case.

The language name is íslenska in the nominative, but after tala it becomes íslensku:

• íslenska = Icelandic (nominative form)
• tala íslensku = speak Icelandic

This is very common with language names in Icelandic:

• tala ensku = speak English
• tala dönsku = speak Danish
• tala þýsku = speak German

So íslensku is not a different word; it is the correct case form here.

Because Icelandic usually says simply tala íslensku = speak Icelandic.

English can say either:

• speak Icelandic
• speak in Icelandic

But Icelandic normally uses the direct object structure without a preposition:

• tala íslensku

So the language is treated more like the thing being spoken.

Here við means with, in the sense of speaking with / talking to someone.

So:

• tala við einhvern = speak with someone / talk to someone

In this sentence:

• við hvern sem er = with anyone

Be careful: við can mean different things in Icelandic in other contexts, but with tala it commonly means with/to.

Because við takes the accusative case, and the accusative form of hver (who) is hvern in the masculine singular.

So:

• hver = who (nominative)
• hvern = whom / who (accusative)

Since the phrase is governed by við, it becomes:

• við hvern ... = with whom / with who ...

Even though English usually just says who, Icelandic still shows the case clearly.

Hvern sem er means anyone, whoever, or more literally any person at all.

It is a common Icelandic pattern:

• hver sem er = anyone / whoever
• hvern sem er = anyone (in the accusative, as required here)

So:

• við hvern sem er = with anyone at all

The phrase gives a strong sense of no matter who the person is.

In this expression, sem er helps create the meaning whoever / anyone at all.

Literally, it can feel something like:

• hvern sem er = whom(soever) it is

But you should think of it as a fixed pattern rather than translating each word too mechanically.

Similar patterns are very common:

• hvað sem er = anything
• hvar sem er = anywhere
• hvenær sem er = anytime

So hvern sem er is best learned as a set phrase meaning anyone.

Yes. Hún is the pronoun she.

So the sentence begins very straightforwardly:

• Hún = she

This tells you the subject is feminine. In context, it refers to a female person or a grammatically feminine referent.

The basic sentence structure is:

• Hún = subject
• þorir = verb
• að tala íslensku = infinitive phrase
• við hvern sem er = prepositional phrase

It can correspond to both, depending on context.

• tala við einhvern can mean talk to someone
• It can also mean talk with someone

In this sentence, English might naturally say either:

• She dares to speak Icelandic with anyone
• She dares to speak Icelandic to anyone

The exact English choice depends on the context, but the Icelandic structure is normal either way.

It mainly means she is brave enough / confident enough / willing enough to do it, not just that she is able.

That is the key idea of þora.

Compare:

• Hún getur talað íslensku. = She can speak Icelandic.
  This is about ability.
• Hún þorir að tala íslensku. = She dares to speak Icelandic.
  This is about courage or confidence.

So in your sentence, the idea is that she is not afraid or shy about speaking Icelandic, even with strangers or just anyone.

The sentence has a very normal and natural word order:

• Hún
• þorir
• að tala íslensku
• við hvern sem er

That is basically:

• Subject + finite verb + infinitive phrase + prepositional phrase

You could move parts around for emphasis in some contexts, but this version is the most neutral and natural for a learner to remember.

You could, but it may sound slightly awkward in natural English depending on the sentence.

A more natural translation is usually:

• with anyone
• to anyone

A more literal translation is:

• with whoever

So a good way to think of it is:

• literal structure: with whoever
• natural meaning: with anyone

Both help you understand the Icelandic, but the second is usually better for everyday translation.