U+10EFC "𐻼" Arabic Combining Alef Overlay Unicode Character

U+10EFC "𐻼" Arabic Combining Alef Overlay is a diacritical mark used in the Arabic script, specifically designed to modify base letters by overlaying an alef character. This combining mark is part of the Arabic Extended-C block and is intended for historical or specialized orthographic contexts where a superscript or overlay alef indicates a long vowel or a grammatical feature, such as in certain Quranic texts or old manuscripts. It attaches directly to the preceding Arabic letter, altering its pronunciation or meaning without affecting the shaping of the base character.