U+0D57 "ൗ" Malayalam Au Length Mark Unicode Character

U+0D57 "ൗ" Malayalam Au Length Mark is a combining diacritical mark used in the Malayalam script to extend the vowel sound 'au' (as in the vowel sign for the independent vowel "ൌ") over a longer duration within a syllable. It appears as a small, curved symbol placed above and to the right of a consonant character, modifying its phonetic length without representing an independent sound itself. This mark is part of the Malayalam Unicode block and is essential for accurate representation of specific phonological distinctions in the language, particularly in literary or formal contexts where vowel elongation is meaningful.