devirleri

Devirleri is a Turkish word formed from the noun devir (period, era, cycle, turnover) combined with the suffix -leri, often indicating third-person possessive or plural. In literal use it means "their eras" or "the eras of", and it appears in historical, legal, financial and literary contexts to refer to distinct time spans, phases of development, or transfers of authority and property.

Etymology traces devir to Ottoman usage influenced by Arabic and Persian roots (dawr/devr), conveying the idea of a cycle or turn. In historiography devirleri is used to group successive phases of a polity or cultural movement (for example, Osmanlı devirleri for Ottoman periods). In administrative and legal language it appears in phrases about transition, such as devir teslim (handover of office or goods) and devir işlemleri (transfer procedures). In finance and commerce devir can denote transfer of assets or turnover, with devirleri referring to multiple transfers or turnovers.

Grammatically, devirleri can function as a bound form whose exact meaning depends on context and the possessor implied by the sentence. The term also occurs in titles of books, articles and artistic works to evoke change, succession or historical rhythm. Its usage remains common in modern Turkish for describing temporal divisions and processes of change.