The homonymy of a preposition and a pronoun in Kermani spoken variant

Prepositions and pronouns are two completely different lexical categories in languages. The present study investigates the word "Xod" in kermani variant of Persian. This word on the one hand functions as reflexive and emphatic pronouns, in the same way as Standard Persian, and on the other hand works as Preposition, in exactly the same way as "ba" in standard Persian. The data related to this study have been extracted from some of the most common books related to the kerman proverbs and idioms. Since there are two words with different grammatical categories and completely unrelated meanings in this variant of Persian, they are considered as homonyms. The proverbs containing "xod" were divided into two groups: one in which "xod" works as pronoun and one in which it works as preposition. The results reveal that the origin of this homonymy is grammaticalization, a hypothesis which is in line with Hopper's first principle , i.e. layering.