As a deity name
Name 347 of the Gayatri Sahasranāma — Devi Bhagavata Purana, as taught by Sages
Name 685 of the Saraswati Sahasranāma — Skanda 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 16th (or accord. to modern reckoning 18th) lunar mansion (sacred to Indra), (parox.), &c. (also pl.)
Scripturally attestedWhy this matches what you typed
M1 · same meaning "jyeṣṭhāyai" is the dative of "jyeṣṭhā" — the same word in a different grammatical case.
M1 · same meaning "jyeṣṭhāyai" is the dative of "jyeṣṭha" — the same word in a different grammatical case.
Related forms
Dictionary citations
jyeṣṭhā f. (g. ajādi) the 16th (or accord. to modern reckoning 18th) lunar mansion (sacred to Indra), AV. xix, 7, 3 (parox.), TBr. iii, 1, 2; PārGṛ.; MBh. &c. (also pl.)
f. the eldest wife, Mn. ix, 122 & 124
jyeṣṭha mfn. (Pāṇ. v, 3, 61) most excellent, pre-eminent, first, chief, best, greatest, (m.) the chief, RV. &c. (ifc. [e.g. vacana-, ‘best in speech’, Kāś.] Pāṇ. vi, 2, 25)
more excellent than (abl.), MBh. xiii, 7205
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