As a deity name
Name 602 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
nourished, cherished, well-fed, thriving, strong, fat, full, complete, perfect, abundant, rich, great, ample, &c.
Scripturally attestedWhy this matches what you typed
M1 · same meaning "puṣṭāyai" is the dative of "puṣṭa" — the same word in a different grammatical case.
Dictionary citations
puṣṭa mfn. nourished, cherished, well-fed, thriving, strong, fat, full, complete, perfect, abundant, rich, great, ample, Mn.; MBh. &c.
rich in, blessed with (instr.), Daś.
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