novennium

English

From Late Latin novennium, from novennis (“9-year”) + -ium (suffix forming abstract nouns).

novennium (plural novennia)

(rare) A nine-year period.
Coordinate terms: annum, biennium, triennium, quadrennium, quinquennium, sexennium, septennium, octennium, decennium, vicennium, tricennium, centennium, quincentennium, millennium, decamillennium, centimillennium, millionennium
- 1871, Henry Scale English, Crowland and Burgh, volume 3, page 148:
  What he says of the novennium is an attempt at duplicity; he would have escaped with that if he could; he did not love to lie: What he says is that Ernulfus was a bishop a little over nine years […]

From novennis +‎ -ium (suffix forming abstract nouns).

novennium n (genitive novenniī or novennī); second declension

(Medieval Latin) a period of nine years, novennium
- 12th century AD, Innocentius III, Regesta sive epistolae 2 XV. Polinianensi Episcopo:
  . Mandat ut cognoscat de stipulatione quadam, an sit contra canones. (Laterani, IV Non. Martii.) Ad nostram noveris audientiam pervenisse, quod, cum R . . . . Laicus de Mar. mutuum recipere voluisset . . . . . creditor Tranensis dioeceseos, ne per canonem contra usurarios editum posset in posterum conveniri, domos et olivas ipsius recepit ab eo titulo emptionis, cum revera contractus usurarius ageretur, quod patet ex eo quod creditor, sicut publicum continet instrumentum, debitori promisit, quod, quandocunque a septennio usque ad novennium daret ei sexaginta uncias Tarenorum, quae vix dimidiam justi pretii contingebant, domos ei restitueret et olivas
  (please add an English translation of this quotation)

¹Found in older Latin (until the Augustan Age).

See the etymology of the corresponding lemma form.

novennium