As a deity name
Name 821 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
3 × 10 (= 30)
Scripturally attestedWhy this matches what you typed
M1 · same meaning "tridaśāyai" is the dative of "tridaśa" — the same word in a different grammatical case.
Dictionary citations
tri—daśa mf(ā)n. 3 × 10 (= 30), MBh. i, 4445
tri—daśa m. pl. (cf. Pāṇ. ii, 2, 25; v, 4, 73; vi, 3, 48, Kāś. and dvi-d˚) the 3 × 10 (in round number for 3 × 11) deities (12 Ādityas, 8 Vasus, 11 Rudras, and 2 Aśvins; cf. RV. ix, 92, 24), MBh. &c.
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