quinquennalia

From Latin quīnquennālia, from quīnquennium (“5-year period”) + -ālia (“-alia: forming the names of festivals”), from quīnquennis (“5-year”) + -ium (“-ium: forming abstract nouns”). Equivalent to quinquennium +‎ -alia.

quinquennalia (plural quinquennalia or quinquennalias)

1. (historical) The festival and religious rituals sometimes observed celebrating a Roman emperor's 5th year of rule.

• quinquennial, quinquennials, quinquennal, quinquennals

• jubilee

• decennalia, quindecennalia, vicennalia, tricennalia

quīnquennālia

1. nominative/accusative/vocative neuter plural of quīnquennālis

• “quinquennalia”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers
• “quinquennalia”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin