U+1A5C "ᩜ" Tai Tham Consonant Sign Ma Unicode Character

U+1A5C "ᩜ" Tai Tham Consonant Sign Ma is a combining diacritical mark used in the Tai Tham script, which historically serves to write languages such as Northern Thai (Lanna), Tai Lü, and Khün. It appears as a small, superscripted form of the consonant letter "ma" and is placed above a base consonant to indicate a final or preposed "m" sound, functioning as a vowel or consonant modifier rather than an independent letter. This sign is essential for accurately representing certain syllables and tonal distinctions in these Southeast Asian languages, contributing to the script's complex orthographic system that blends Indic-derived consonant clusters with indigenous tonal notation.