Inherited from Sanskrit सिद्ध (siddha).
سِڌو • (sidho) (Devanagari सिधो)
- straight
- Parmanand, Mewaram (1910) “سِڌو”, in Sindhi-English Dictionary, Hyderabad, Sindh: The Sind Juvenile Co-operative Society
- Khānu, Balocu (1960–1988) “سِڌو”, in Jāmiʻ Sindhī lughāta (in Sindhi), Hyderabad, Sindh: Sindhī Adabī Borḍ