–(y)IsAr –(y)AcAK alternation in old Anatolian Turkish

Old Anatolian Turkish is one of the richest periods in the history of the Turkish language, marked by numerous significant changes. During this period, the forms -(y)IsAr and -(y)AcAK, which initially alternated and later phased out, were studied. This study identifies these forms in works representing the Old Anatolian Turkish period and tracks how the alternation between these forms developed over time and under what conditions. The introduction provides general information about the Old Anatolian Turkish period and the works examined. The first chapter offers information on the forms -(y)IsAr and -(y)AcAK, their identification in the examined works, and their distribution. In the conclusion, the collected data are chronologically evaluated and presented in tabular form. Keywords: Old Anatolian Turkish, -(y)IsAr, -(y)AcAK, Anternation