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the language of the Sogdians. It belongs to the Eastern Iranian subgroup of the Indo-Iranian branch of languages.
Sogdian is attested to in primarily religious texts dating from the late first century B.C. to the ninth century AD]. that have been found in Middle Asia; they include Buddhist, Manichean, and Christian texts. These differ in content owing to religious differences and also in language and in script.
Like other Middle Iranian languages, Sogdian reflects a significant breakdown of the Old Iranian inflectional system and a shift from synthetic forms expressing grammatical relationships to analytic forms. In the phonetic system, voiced stops consistently become fricatives. Yagnobi is a descendant of Sogdian.
REFERENCESSogdiiskii sbornik: Sb. statei o pamiatnikakh sogdiiskogo iazyka i kul’tury, naidennykh na gore Mug v Tadzhikskoi SSR. Leningrad, 1934.
Gauthiot, R., and E. Benveniste. Essai de grammaire sogdienne, parts 1–2. Preface by A. Meillet. Paris, 1914–29. Gershevitch, I.
Grammar of Manichean Sogdian. Oxford, 1954.