| Description | Notes | |
|---|---|---|
| EN | Siddham, Siddhaṃ, Siddhamātṛkā | Ancient / historic script. Only for use in ONIX 3.0 or later |
| FR | Siddham | Langue ancienne. Pour un usage en ONIX 3.0 ou une version ultérieure uniquement |
| ES | Siddham | Sistema antiguo / histórico. Usar solo con ONIX 3.0 o posterior |
List 121 · Text script – based on ISO 15924
Sidd — Siddham, Siddhaṃ, Siddhamātṛkā
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- Introduced in Issue 38