As a deity name
Name 33 of the Shiva Sahasranāma — Mahabharata (Anushasana Parva), as taught by Sage Tandi to Sage Upamanyu
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
a great work
Scripturally attestedWhy this matches what you typed
M1 · same meaning "mahākarmaṇe" is the dative of "mahākarman" — the same word in a different grammatical case.
Dictionary citations
mahā—karman n. a great work, AitBr.
mahā—karman mfn. accomplishing great works (said of Śiva), MBh.
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