Siddham letter Dda

It is a consonant base whose vowel depends on nearby marks.

In Siddham, a consonant carries an inherent vowel. A vowel sign changes it; a virama mark cancels it. 𑖚 is a base within a larger Sanskrit spelling.

Siddham took shape as a group of South Asian scripts around the 5th century. A Late Gupta-period palm-leaf copy (7th–8th century) of the Sanskrit Buddhist works Heart Sutra and Vijaya Dharani, held at Tokyo National Museum, shows this manuscript setting. Siddham writing traveled through South Asia, China, Korea and Japan. At the script level, it is historically related to Sharada, a Kashmir script in the older Brahmi family.