anniversary (adj.) Copy link Outline 1. annĭversārĭus2. annŭus3. sollennis, e • anniversary (adj.): 1. annĭversārĭus: a. religious services, an. sacra, Cic. 2. annŭus: annua sacra, Virg. 3. sollennis, e: an a. and established sacrifice, s. et statum sacrificium, Cic. (cf. Liv. 1, 31).