Yeni kitap, tamamen özgün bir hikayeye sahip.

In Turkish, adjectives usually come before the noun they describe, just like in English.

• yeni kitap = new book
• özgün hikaye = original story

So yeni kitap is the normal order. You would not usually put yeni after kitap.

Tamamen means completely or entirely.

In this sentence, it modifies özgün, so:

• tamamen özgün = completely original

It strengthens the adjective and emphasizes that the story is fully original.

Bir can mean a/an in Turkish.

So:

• özgün bir hikaye = an original story

It can also sometimes mean one, but here it is functioning like the English article a/an.

This is because sahip normally takes the dative case in Turkish.

• hikaye = story
• hikayeye = to a story

With sahip olmak / sahip olmak-type usage, Turkish marks the thing possessed with the dative:

• bir şeye sahip olmak = to have something
• literally: to be possessed to something

So:

• özgün bir hikayeye sahip = has an original story

The ending here is:

• hikaye + -ye

Because the noun ends in a vowel, the buffer consonant y appears:

• hikaye
• hikaye + e
• hikayeye

Sahip means something like possessing / having, and it is commonly used in the expression:

• X-e sahip olmak = to have X

Examples:

• Arabaya sahip olmak = to have a car
• Yeteneklere sahip olmak = to have abilities

In your sentence, sahip is the predicate, so the whole sentence means that the new book has a completely original story.

Turkish often uses this structure instead of a simple verb equivalent to English have.

Turkish often omits the present-tense copula in third person singular sentences.

So a sentence like this can end in:

• sahip = is/has without needing an extra visible verb

A more formal version could be:

• Yeni kitap, tamamen özgün bir hikayeye sahiptir.

Here -tir adds a formal or written-style tone. But in everyday Turkish, sahip by itself is very common and natural.

Often yes in meaning, but not always in structure.

English says:

• The book has a story.

Turkish often says:

• Kitap bir hikayeye sahip.
• literally closer to: The book is possessed of a story.

So the meaning matches English have, but the grammar is different:

• English uses have
• Turkish often uses sahip with a noun in the dative

Also, Turkish has other ways to express possession depending on context, so sahip olmak is not the only possibility.

The sentence is:

• Yeni kitap, tamamen özgün bir hikayeye sahip.

A simple breakdown is:

• Yeni kitap = subject
• tamamen özgün bir hikayeye = complement
• sahip = predicate

Turkish often puts important descriptive information before the predicate, and the predicate comes at the end.

A very natural structure is:

• [Subject] + [complement] + [predicate]

So this sentence follows a common Turkish pattern.

Not really. In many cases, the sentence would also be written naturally without it:

• Yeni kitap tamamen özgün bir hikayeye sahip.

The comma may be used stylistically to create a slight pause or emphasis, but it is not essential for the grammar.

Yes. You may see both:

• hikaye
• hikâye

The version with â reflects a more traditional spelling and can indicate vowel quality, but in modern everyday Turkish many writers use hikaye without the circumflex.

Both are understood. The same applies in the dative:

• hikayeye
• hikâyeye

Usually it is very close, but learners should be aware of nuance.

Özgün commonly means:

• original
• unique
• authentic
• not copied

In this sentence, it means the story is not derivative or copied; it has its own originality.

So tamamen özgün bir hikaye is stronger than just saying the story is new. It means the story is genuinely original in character or creation.