Έχοντας ξενυχτήσει, δεν ήθελα ούτε καπουτσίνο ούτε τσάι το πρωί.

It means having stayed up late or after staying up late.

This is a very common Greek way to express a cause or an earlier action before the main verb.

• έχοντας = having
• ξενυχτήσει = stayed up late / spent the night awake

So the whole phrase means something like:

• Having stayed up late...
• Since I had stayed up late...
• After staying up late...

It introduces the reason or background for the main statement: δεν ήθελα ούτε καπουτσίνο ούτε τσάι το πρωί.

Because the two forms do not mean exactly the same thing.

• ξενυχτώντας = staying up late, emphasizing an ongoing action
• έχοντας ξενυχτήσει = having stayed up late, emphasizing that the action was already completed before the next one

In this sentence, the speaker first stayed up late, and then, the next morning, did not want cappuccino or tea. So Greek uses the form that shows an earlier completed action.

Very roughly:

• Ξενυχτώντας, ... = while staying up late...
• Έχοντας ξενυχτήσει, ... = after having stayed up late...

Ήθελα is the imperfect of θέλω and here it means I didn’t want.

Greek often uses the imperfect for:

• states
• feelings
• ongoing mental attitudes in the past

Wanting or not wanting something is a state, so the imperfect is very natural here.

Compare:

• δεν ήθελα = I didn’t want / I wasn’t in the mood for
• δεν θέλησα = more like I refused / I was unwilling at a specific moment

So in this sentence, δεν ήθελα sounds natural because it describes the speaker’s state that morning.

It means neither ... nor ....

So:

• ούτε καπουτσίνο ούτε τσάι = neither cappuccino nor tea

This is a standard Greek pattern.

Examples:

• Δεν θέλω ούτε καφέ ούτε τσάι.
  I want neither coffee nor tea.
• Δεν είδα ούτε τον Γιάννη ούτε τη Μαρία.
  I saw neither Giannis nor Maria.

In your sentence, it is paired with δεν, which is completely normal in Greek.

Because in Greek, this kind of sentence normally keeps the verb negated with δεν.

So Greek says:

• Δεν ήθελα ούτε καπουτσίνο ούτε τσάι.

Literally, this is something like:

• I did not want neither cappuccino nor tea

That sounds wrong in standard English, but it is correct in Greek. Greek commonly allows this kind of negative concord, where multiple negative elements work together in the same sentence.

So do not try to force English logic onto it. In Greek, δεν ... ούτε ... ούτε ... is the normal pattern.

Because Greek often omits the article when talking about some amount of a drink/food in a general sense.

So:

• ήθελα καπουτσίνο = I wanted cappuccino / a cappuccino
• ήθελα τσάι = I wanted tea / some tea

Greek does not always need an article where English uses a or some.

If you add the article, the meaning can become more specific depending on context:

• ήθελα έναν καπουτσίνο = I wanted a cappuccino
• ήθελα το τσάι = I wanted the tea

But in your sentence, the article-less version is very natural.

They are the direct objects of ήθελα, so they are in the accusative.

However, both καπουτσίνο and τσάι are neuter nouns, and in these forms the nominative and accusative look the same. So even though they are accusative, you do not see a visible change.

This is very common with neuter nouns in Greek.

Το πρωί means in the morning or this morning, depending on context.

Greek very often uses the article with parts of the day:

• το πρωί = in the morning
• το βράδυ = in the evening / at night
• το μεσημέρι = at noon / in the afternoon, depending on context

So the article here is normal and idiomatic.

In this sentence, το πρωί tells you when the speaker didn’t want either drink.

Because Greek word order is flexible, and time expressions often appear at the end.

So:

• δεν ήθελα ούτε καπουτσίνο ούτε τσάι το πρωί
• το πρωί δεν ήθελα ούτε καπουτσίνο ούτε τσάι

Both are possible.

Putting το πρωί at the end sounds natural and keeps the main contrast together first: neither cappuccino nor tea.

Greek word order is often guided by:

• emphasis
• rhythm
• information flow

not only by strict fixed position.

Yes, but neither cappuccino nor tea is closer to the Greek structure.

Because of ούτε ... ούτε ..., the most direct translation is:

• I wanted neither cappuccino nor tea in the morning.
• I didn’t want either cappuccino or tea in the morning.

Both are fine in English. The first reflects the Greek pattern more clearly.

Not if you want the same meaning.

• ούτε ... ούτε ... = neither ... nor ...
• ή = or

So:

• δεν ήθελα ούτε καπουτσίνο ούτε τσάι = I wanted neither of them
• δεν ήθελα καπουτσίνο ή τσάι would not be the normal way to express that

If you want to say not cappuccino or tea in the sense of rejecting both options, Greek strongly prefers ούτε ... ούτε ....

Yes. The base verb is ξενυχτώ, which means:

• to stay up all night
• to stay up late
• to pass the night awake

The form ξενυχτήσει here is the completed-action form used after έχοντας.

So:

• ξενυχτώ = I stay up late
• ξενύχτησα = I stayed up late
• έχοντας ξενυχτήσει = having stayed up late

It is a useful everyday verb.

A more straightforward version could be:

• Επειδή είχα ξενυχτήσει, δεν ήθελα ούτε καπουτσίνο ούτε τσάι το πρωί.

This means:

• Because I had stayed up late, I didn’t want either cappuccino or tea in the morning.

Here, επειδή means because, and είχα ξενυχτήσει is more explicit than έχοντας ξενυχτήσει.

So the original sentence is a bit more compact and elegant, while this version is more direct.

It is not extremely formal, but it is a bit more written or careful in style than a simple επειδή... clause.

So:

• Έχοντας ξενυχτήσει, ... sounds smooth and natural, especially in writing or more polished speech.
• Επειδή είχα ξενυχτήσει, ... sounds more explicit and conversational.

Both are correct. The original sentence just uses a slightly more compact structure.