tricennium
Could not find tricennii in Logeion dictionaries.
tricennii Noun: neuter genitive singular of tricennium
trīcennĭum, ii, n. [triginta-annos],
- the space of thirty years, Cod. Just. 7, 31, 1; Sid. Ep. 8, 6 med.; Cassiod. Var. 1, 18; 3, 31.
trīcennium, iī, n. (triginta u. annus), ein Zeitraum von dreißig Jahren, Sidon. u.a.
tuum ‥ propositum esse ‥ biennio respirare. utinam huic desiderio ‥ et defectui tuo vicennium aut ~ium prescripsisses!
trīcennĭum, ĭī, n. (triginta, annus), durée de trente ans : Cod. Just. 7, 31, 1 ; Sid. Ep. 8, 6.