As a deity name
Name 325 of the Durga Sahasranāma — Kula Arnava Tantra / Skanda Purana, as taught by Lord Shiva to Goddess Parvati
As a Hindi name
Nearest attested word 'सिद्धिदा' does not appear as a word in our Hindi sources. The nearest word is सिद्धिद, meaning सिद्धि देनेवाला. — Śabdasāgara nearest word: सिद्धिद — a suggestion, not a meaning
As a Sanskrit word
Meaning
conferring felicity or beatitude — feminine form of siddhida
Scripturally attested Verified split — attested membersWhy this matches what you typed
M1 · same meaning "siddhidā" is the feminine form of "siddhida" — the same word with the feminine ending (nominative).
Dictionary citations
siddhi—da mf(ā)n. conferring felicity or beatitude, VarYogay.; Mālatīm.; BhP.
N. of a form of Bhairava or Śiva, Śivag.
Caveats
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