One of the most important features of manuscripts is that they provide information about the language features the period in which they were written. For Old Anatolian Turkish, for which there are two separate writing traditions as Uyghur and Arabic-Persian spellings, it is not possible to mention regular spelling and significant differences are remarkable in writing of vowels in particular. These complex spelling features are not only seen in other works written in the same century, but also within the same work based on the period when the work was written and also its content. Written in the 16th century and described as a work featuring the transition period from Old Anatolian Turkish to Ottoman Turkish, the Mu¡µnü'l-¢ assâmµn has two copies. Its both copies were written in the same period, have several specific features as in other works written in the same period and give information about language features of their period, therefore it is considerably important. In this study, which was conducted mostly based on the spelling features of Turkish words involved in the work, qualities indicating that the work is of a transitional nature were determined, then how vowels and consonants were written at the beginning, in the middle, and at the end of words as well as the use of vowel diacritics were emphasized. Following details highlighting how vowels and consonants are shown, the usage of patterns such as “+dUr, içün, -gil, soñra, ki/kim” under the heading "Cursive Spelling/Heterography" was presented with examples. What kinds of vowel diacritics were used to show corrections, explanations, and examples along the edges of pages or between the lines were mentioned with examples under the heading "Corrections and Additions" at the end of the study.
Mu¡µnü’l ¢ assâmµn, Old Anatolian Turkish, Spelling Features, Use of Vowel Diacritics