As a deity name
Name 2 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
‘the unevolved (Evolver of all things)’, the primary germ of nature, primordial element or productive principle whence all the phenomena of the material world are developed, &c.
Scripturally attestedWhy this matches what you typed
M1 · same meaning "avyaktāyai" is the dative of "avyakta" — the same word in a different grammatical case.
Dictionary citations
a-vyakta mfn. undeveloped, not manifest, unapparent, indistinct, invisible, imperceptible, Up.; Pāṇ.; Mn. &c.
(in alg.) unknown as quantity or number
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