Abstract
        
            
            Eski Türkçe +lI Eki Üzerine
            
            Suffix +lI that was considered as derivative suffix up till now, is actually a case marker having a syntactic function. In this paper, the functions of +lI are analyzed in details with examples in Old Turkic Texts.<
            
            
            Keywords
            Old Turkic, suffix +lI, comitative and connective case.