As a deity name
Name 937 of the Hanuman Sahasranāma — Rasvin Samhita / Brahmanda Purana, as taught by Lord Ram / Sages
Name 727 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
having a great banner (said of Śiva)
Scripturally attestedWhy this matches what you typed
M1 · same meaning "mahāketave" is the dative of "mahāketu" — the same word in a different grammatical case.
Dictionary citations
mahā—ketu mfn. having a great banner (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