As a deity name
Name 438 of the Surya Sahasranāma — Bhavishya 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
gr˚-minded, high-m˚, magnanimous, arrogant-minded, proud, haughty
Scripturally attestedWhy this matches what you typed
M1 · same meaning "mahāmanase" is the dative of "mahāmanas" — the same word in a different grammatical case.
Dictionary citations
mahā—manas mfn. (mahā-) gr˚-minded, high-m˚, magnanimous, RV.; MBh.; R.; Śiś. arrogant-minded, proud, haughty, ChUp.; MBh.
mahā—manas m. the fabulous animal Śarabha (q.v.), 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