As a deity name
Name 866 of the Gayatri Sahasranāma — Devi Bhagavata Purana, as taught by Sages
As a Hindi name
No reading on this path — this spelling has no entry in our Hindi sources, and no near neighbour is attested there either. We say so rather than invent one.
As a Sanskrit word
Meaning
Rudra's wife, the goddess Durgā, &c.
Scripturally attestedWhy this matches what you typed
M1 · same meaning "rudrāṇyai" is the dative of "rudrāṇī" — the same word in a different grammatical case.
Dictionary citations
rudrāṇī f. Rudra's wife, the goddess Durgā, ŚāṅkhŚr.; MBh. &c.
N. of a girl eleven years of age (in whom menstruation has not yet commenced, representing the goddess D˚ at the D˚ festival), L.
Caveats
Sources contain errors and engines have limits; every claim above carries its citation so you can verify it. This is guidance about names and their sources — not religious or astrological consultation. How we work · Our sources