vicennale

From Latin vīcennālis, from vīcennium + -ālis, from vīcennis (“20-year”) + -ium, from vīciēs (“twenty times”) + annus (“year”) + -is.

vicennale m or f (plural vicennali)

1. vicennial, occurring once every twenty years

From Latin vicennalia, from vicennium + -alia.

vicennale m (plural vicennali)

1. vicennial, a twentieth anniversary, particularly
   1. (historical) vicennalia, a festival and religious ritual marking the 20th year of a Roman emperor's reign

• decennale

• (Classical Latin) IPA^(key): [wiː.kɛnˈnaː.ɫɛ]
• (modern Italianate Ecclesiastical) IPA^(key): [vi.t͡ʃenˈnaː.le]

vīcennāle

1. nominative/accusative/vocative neuter singular of vīcennālis