triennial

triennial
adj.
P. τριετής.
Triennial festival: P. τριετηρίς, ἡ.

TRIENNIAL

trietericus. A triennial feast (i.e. one celebrated every three years trieterica (sacra) -orum neuter; trieteris -idis feminine; triennia -um neuter (scilicet sacra Ov. Met. 9 642 Bach.).

triennial:

1. triennis, e: a word occurring only in n. pl. triennia sc. sacra, a t. festival, Ov. M. 9, 642.

2. triĕtērĭcus (Gr. τριετηρικός): Ov.: Virg. N. pl. trieterica = triennia: Ov. R. Am. 593. A t. period, triennium: Cic.: Caes.