Yi Radical Cyp

It is a dictionary index for Yi syllables.

Radical 4 groups signs by a shared shape part, like radical indexes in Chinese dictionaries. Each Yi sign writes a spoken syllable; ꒔ sorts the signs.

Yi script origins are disputed; its earliest securely dated surviving evidence is a 1485 inscription on a bronze bell. Liangshan’s standard was devised in 1974 and promulgated in 1980, standardizing regionally varied Yi writing. These are script dates, not ꒔’s origin.