As a deity name
Name 616 of the Hanuman Sahasranāma — Rasvin Samhita / Brahmanda Purana, as taught by Lord Ram / 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
any very sacred or efficacious text (of the Veda &c.)
Scripturally attested Verified split — attested membersMultiple readings (2)Why this matches what you typed
M1 · same meaning "mahāmantrāya" is the dative of "mahāmantra" — the same word in a different grammatical case.
Dictionary citations
mahā—mantra m. any very sacred or efficacious text (of the Veda &c.), MW.
a great spell, very eff˚ charm (used esp. against a serpent's venom), Kād.; Gīt.
Alternative readings
More than one analysis survives full verification. That ambiguity is real, so we show every reading rather than pick one silently.
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