What does novennis mean in Latin?

novennis, a adjective, means “nine-year-old; of nine years, lasting nine years”.

How do you pronounce novennis?

In classical Latin, [nɔˈwɛn.nɪs]; in ecclesiastical (church) Latin, [noˈvɛn.nis].

adjectivethird-declension two-termination adjective

novennis (neuter novenne)

Classical[nɔˈwɛn.nɪs]Ecclesiastical[noˈvɛn.nis]

singular
form	masculine	feminine	neuter
nominative	novennis	novennis	novenne
genitive	novennis	novennis	novennis
dative	novennī	novennī	novennī
accusative	novennem	novennem	novenne
ablative	novennī	novennī	novennī
vocative	novennis	novennis	novenne

plural
form	masculine	feminine	neuter
nominative	novennēs	novennēs	novennia
genitive	novennium	novennium	novennium
dative	novennibus	novennibus	novennibus
accusative	novennīs novennēs	novennīs novennēs	novennia
ablative	novennibus	novennibus	novennibus
vocative	novennēs	novennēs	novennia

nŏvennis, e, adj. novem-annus,

I. of nine years (post-class.): filius, Lact. Mort. Persec. 20, 4.

From novem (“nine”) + annus (“year”) + -is (suffix forming compound adjectives).