Adjectivalization and Deadjectivalization in Persian:A Typological Prototype Approach

Using a descriptive-analytical method, this research investigates adjectivalization and deadjectivalization in Persian within the framework of the Typological Prototype Theory. The research specifically aims at describing and explaining the two phenomena of adjectivalization and deadjectivalization in Persian, determining the prototypicality degree of the parts of speech resulting from these two processes, and evaluating the Typological Prototype Theory in determining the prototypical features of the adjectivalized nominals and nominalized adjectivals. The raw data were primarily selected by the researchers, analyzed based on the criteria and sub-criteria of the Typological Prototype Theory, and substantiated in the Persian Language Database and Bijankhan Corpus. This research shows that the category shift in the adjectivalization phenomenon is from the