As a deity name
Name 253 of the Saraswati Sahasranāma — Skanda Purana, as taught by Lord Brahma / 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
good fortune (in this sense the loc. āsu seems to be used)
Scripturally attestedWhy this matches what you typed
M1 · same meaning "subhagāyai" is the dative of "subhagā" — the same word in a different grammatical case.
M1 · same meaning "subhagāyai" is the dative of "subhaga" — the same word in a different grammatical case.
Related forms
Dictionary citations
su—bhagā (ā), f. good fortune (in this sense the loc. āsu seems to be used), PañcavBr.
a beloved or favourite wife, R. (cf. comp.)
su—bhaga mf(ā)n. possessing good fortune, very fortunate or prosperous, lucky, happy, blessed, highly favoured, RV. &c. &c.
beautiful, lovely, charming, pleasing, pretty (voc. subhaga and subhage, often in friendly address), ib.
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