As a deity name
Name 790 of the Gayatri Sahasranāma — Devi Bhagavata Purana, as taught by Sages
Name 290 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
the gr˚ Lakṣmī (properly the Śakti of Nārāyaṇa or Viṣṇu, but sometimes identified with Durgā or with Sarasvatī; also N. of Dākṣāyaṇī in Kara-vīra), (cf. )
Scripturally attestedWhy this matches what you typed
M1 · same meaning "mahālakṣmyai" is the dative of "mahālakṣmī" — the same word in a different grammatical case.
Dictionary citations
mahā—lakṣmī f. the gr˚ Lakṣmī (properly the Śakti of Nārāyaṇa or Viṣṇu, but sometimes identified with Durgā or with Sarasvatī; also N. of Dākṣāyaṇī in Kara-vīra), Pañcar.; Kathās. (cf. RTL. 385)
N. of a girl 13 years old and not arrived at puberty (who represents the goddess Durgā 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