bölümüdür

Bölümüdür is a Turkish grammatical form that expresses a predicative statement by combining the noun bölüm, meaning “section,” “part,” or “chapter,” with the third-person singular copula suffix -dür. The result conveys a classification or identity: “is a section/chapter.” This construction appears in nominal clauses and is used to state what something is.

Morphology and usage: The root bölüm denotes a division within a larger whole. The suffix -dür is one of the Turkish copulas that marks present predication; it has four harmony variants (-dır, -dir, -dur, -dür) chosen to agree with the stem’s vowel harmony. For bölüm, the last vowel is ü, so the form is bölümüdür. In sentences, the copular suffix attaches directly to the noun, and a preceding indefinite article bir is commonly used for clarity, as in bu metin bir bölümdür (“this text is a section”). In everyday speech the copula can be omitted in informal contexts, but in formal or written Turkish it is typically present.

Examples: Bu metin bir bölümdür. (This text is a section.) Bu eser bir bölümdür. (This work is a chapter/section.)

Etymology: Bölüm derives from the Turkish verb böl- “to divide,” with a nominal suffix forming the noun meaning division or part. The copula -dür reflects the Turkish system of predication endings, whose variants harmonize with the preceding vowel. See also Turkish grammar, copula in Turkish, and vowel harmony.

Notes: Bölümüdür functions mainly in formal, predicative statements and is part of standard Turkish morphology for making classifications or identifications.

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