As a deity name
Name 454 of the Narasimha Sahasranāma — Brahmanda Purana / Narasimha Purana, as taught by Sages to Assembly of Devotees
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
‘Brahmā's head’, N. of a mythical weapon, (also -śīrṣan, )
Scripturally attestedWhy this matches what you typed
M1 · same meaning "brahmaśirase" is the dative of "brahmaśiras" — the same word in a different grammatical case.
Dictionary citations
brahma—śiras n. ‘Brahmā's head’, N. of a mythical weapon, MBh.; R.; Hariv. (also -śīrṣan, BhP.)
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