tṛtī́ya mf(A)n. (fr. trí, [Pāṇ. v, 2, 55]; see also, [vii, 3, 115]; [i, 1, 36], Vārtt.) the 3rd, [RV.] &c.
tṛtī́ya m. the 3rd consonant of a Varga (g, j, ḍ, d, b), [RPrāt.]; [VPrāt.]; [APrāt.]; [Pāṇ.], Vārtt. & [Kāś.]
(in music) N. of a measure
tṛ́tīya mfn. ([Pāṇ. v, 3, 48]) forming the 3rd part, (n.) a 3rd part, [TS.]; [TBr.]; [ŚBr. iii f.]; [KātyŚr.]; [Mn. vi, 33]; [MBh.];
[cf. Zend thritya, Lat. tertius; Goth. thridja.]