As a deity name
Name 321 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
the base of the 2nd pers. pron. as used in comp.
Scripturally attestedWhy this matches what you typed
M1 · same meaning "tubhyaṃ" is the dative of "yuṣmad" — the same word in a different grammatical case. (The spelling "tubhyaṃ" is looked up as "tubhyam" — a standard final-sound spelling variant.)
Dictionary citations
yuṣmad the base of the 2nd pers. pron. as used in comp.
also considered by native grammarians to be the base of the cases yuṣmān &c. (see above).
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