اختي عندها برد ومش هتروح الجامعة النهارده.

A natural pronunciation is:

ikhti ʿandaha bard w maš hatrūḥ il-gāmʿa en-naharda

A few notes:

• اختي = ikhti or okhti depending on accent and how carefully someone is speaking
• ع in عندها is the Arabic letter ʿayn, a sound English does not have
• مش is usually pronounced maš
• هتروح is hatrūḥ or sometimes hitrūḥ depending on the speaker
• الجامعة in Egyptian is often pronounced il-gāmʿa
• النهارده is usually en-naharda or in-naharda

In Egyptian Arabic, possession is often expressed with عند plus a pronoun ending.

So:

• عندي = I have
• عندك = you have
• عنده = he has
• عندها = she has

Literally, عندها is something like at her, but in everyday Arabic it commonly means she has.

So اختي عندها برد literally looks like my sister, at her, cold, but the real meaning is simply my sister has a cold.

Yes. برد literally relates to cold or coldness, but in everyday Egyptian Arabic it also means a cold as an illness.

So:

• عنده برد = he has a cold
• عندها برد = she has a cold

This is very common and natural. English does something similar in a different way when we say I have a cold.

هتروح means she will go.

It breaks down like this:

• تروح = she goes / she would go / you go, depending on context
• هـ at the beginning marks the future in Egyptian Arabic

So:

• تروح = she goes
• هتروح = she will go

Because the subject is my sister, the feminine form is used. That is why you see تـ at the beginning of the verb.

In Egyptian Arabic, مش is the usual word for negation in many non-past sentences.

So:

• هتروح = she will go
• مش هتروح = she will not go / she isn’t going to go

This is a very common Egyptian pattern:

• أنا هروح = I will go
• أنا مش هروح = I will not go

So مش comes before the future verb.

That is a great question, because تـ can indeed mark more than one person.

In the present/future system, تـ can be used for:

• you masculine singular
• you feminine singular
• she

The context tells you which one is meant.

Here, since the subject is اختي = my sister, هتروح clearly means she will go, not you will go.

Because the verb راح / يروح in Egyptian Arabic often works directly with the destination, without needing a separate word equivalent to English to.

So:

• راحت الجامعة = she went to the university
• هتروح الجامعة = she will go to the university

This is normal Arabic usage. English needs to, but Egyptian Arabic usually does not here.

الجامعة means the university.

In many situations, Arabic prefers the definite form where English might say to university, to school, or to work without the.

So هتروح الجامعة is perfectly natural and usually means she’s going to the university / to الجامعة, which in English is often just translated more naturally as to university or to college, depending on context.

Using جامعة without ال would sound less natural in this sentence unless you were making a different kind of statement.

النهارده means today in Egyptian Arabic.

Yes, it is specifically a colloquial Egyptian form. You may also see spellings like:

• النهارده
• النهاردة
• انهارده
• النهاردا in less standard writing

They all represent the same everyday Egyptian word.

In Modern Standard Arabic, the usual word would be اليوم.

In more careful or standard spelling, yes, you would usually write أختي.

But in informal Egyptian writing, especially in texting or casual online writing, people often leave out hamzas. So اختي is a very common casual spelling of أختي.

Both refer to my sister.

So this is mainly a spelling style issue, not a change in meaning.

و simply means and.

So the sentence is made of two parts:

• اختي عندها برد = my sister has a cold
• ومش هتروح الجامعة النهارده = and she won’t go to the university today

In Arabic, و is attached directly to the next word, which is why you see ومش rather than و مش in many texts.

The sentence starts with the topic or subject:

• اختي = my sister

Then it gives information about her:

• عندها برد = has a cold
• مش هتروح الجامعة النهارده = won’t go to the university today

So the overall feel is:

• My sister
  • has a cold
    • and won’t go to the university today

This kind of subject-first order is very common in Egyptian Arabic, especially in everyday speech.

A Modern Standard Arabic version would be something like:

أختي مصابة بالبرد ولن تذهب إلى الجامعة اليوم
or
أختي عندها زكام ولن تذهب إلى الجامعة اليوم

Main differences:

• أختي instead of casual اختي
• اليوم instead of Egyptian النهارده
• لن تذهب for will not go
• إلى الجامعة instead of directly الجامعة
• زكام is a more standard word for a cold, though برد is common colloquially

The original sentence is clearly Egyptian and very natural in everyday speech.