Author(s): ?ahap BULAK
Possessive suffixes have been subject of many scientific studies in various aspects including their qualities and functions up to now. However, though they have been studied in such a huge amount, there has not been any consensus that has been achieved on some issues related to these suffixes. One of the points that have to reach a solution related to possessive suffixes is whether possessive suffixes have derivational function. This subject, essential to reveal the functions of possessive suffixes in full, has not been discussed enough up to the present. While in some of the grammar books, there is no sign of function of possessive suffixes regarding derivation, in others; functions of possessive suffixes have been considered separately as single functions in forms of having information related to person, derivation and determinative. Considering the function called as determinative and examples related to such a function in grammar books, it may be observed that this function involves two other functions that are very different from each other. One of these is the feature of inflexional suffix with function of having information related to the person valid for all possessive suffixes. The other one is the feature of derivational suffix comprised of type/task modifier and derivational function as well as the function to form noun from noun by particularly third person possessive suffixes. In this study, first off, possessive suffixes and their functions have been highlighted and then comments related to determinative function of possessive suffixes have been assessed. Following them, derivational function and type/task modifier function of possessive suffixes have been examined and these functions have been explained and illustrated. Keywords: Turkey Turkish, Morphology, Suffixes, Possessive Suffixes, Derivational Function.