öyküsü
Öyküsü is a Turkish noun form that combines the noun öykü (story) with a third-person possessive suffix. The result is used to refer to “the story of” someone or something, or to mean “its/story’s” in a broader sense. It commonly appears in phrases such as Ankara'nın öyküsü (“the story of Ankara”) or onun öyküsü (“his/her/its story”). The suffix -sü marks the third-person possessive, and when used in noun phrases it helps indicate ownership or relation to a subject.
Usage in Turkish typically follows a genitive construction for the possessor plus öyküsü to name the story
Relation to other terms: öykü and hikâye are closely related synonyms in Turkish; öykü is the more
In summary, öyküsü denotes “the story of” a subject and is a standard element in Turkish noun