Schematic Meanings of Prepositions “baraye” and “ta” and Their Secondary Grammaticalization

The present paper is a semantic survey of prepositions "/barāyē/ and /tā/. The aim of study is to identify schematic meaning of the mentioned prepositions with a diachronic view in order to investigate semasiological changes of meaning as a result of their secondary grammaticalization. To achieve this goal, the meanings of each of the prepositions were gathered from Sokhan and Dehkhoda dictionaries. After analyzing prepositions' meanings, associative image schemas with the meanings have been mentioned. Prototypical and peripheral meanings of prepositions have been determined using Evan and Tyler's (2003) suggested method. After proving polysemy of the mentioned prepositions; semantic network of each preposition; is drawn. Finally, polysemy of the investigated prepositions has been explained with regard to imagery schemas as the result of secondary grammaticalization. The innovative aspect of this research is that the polysemy and secondary grammaticalization of prepositions had not been studied with regard to conceptual schemas associated with their semantic functions before.