As a deity name
Name 834 of the Narasimha Sahasranāma — Brahmanda Purana / Narasimha Purana, as taught by Sages to Assembly of Devotees
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
state, condition, position
Scripturally attestedWhy this matches what you typed
M1 · same meaning "niṣṭhāyai" is the dative of "niṣṭhā" — the same word in a different grammatical case.
Dictionary citations
ni-ṣṭhā (√ sthā; aor. ny-aṣṭhāt pf. ni-tasthau, Vop.) : Caus. (aor. ny-atiṣṭhipat) to fix in (loc.), ŚBr.; to give forth, emit, yield, HPariś.
1. ni-˚ṣṭhā f. (ifc. f(ā). ) state, condition, position, Bhag.
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