How do reflexive-possessive endings work in Mongolian languages?

In Mongolian languages, reflexive-possessive endings are a feature of their agglutinative morphology, where words are formed by adding suffixes to a root. These endings function to indicate that an object belongs to the subject of the sentence or clause.1

Reflexive-possessive affixes are typically adjoined to the end of a word, often following other grammatical markers such as case endings. For example, in Classical Mongolian, the phrase baγsi-tai-ban translates to "with his own teacher," where the structure is analyzed as "teacher-[comitative]-[reflexive-possessive]". Similarly, these markers can be used alongside other suffixes to express complex relationships, such as in the Classical Mongolian construction eke-yin-iyen, meaning "of one's own mother," which is analyzed as "root word-genitive case-reflexive-possessive".1

These endings are part of a broader system of suffixation in Mongolian languages that allows for the precise expression of grammatical functions through the sequential addition of morphemes.1