LATIN DICTIONARYLexicon Latīnum
adjectivethird-declension two-termination adjective

illūnis1

illūnis (neuter illūne)
Classical[ɪlˈluː.nɪs]Ecclesiastical[ilˈluː.nis]

Meaning

  1. two terminationmoonless

Latīnē defined in Latin in our graded readers

Declension

singular
formmasculinefeminineneuter
nominativeillūnisillūnisillūne
genitiveillūnisillūnisillūnis
dativeillūnīillūnīillūnī
accusativeillūnemillūnemillūne
ablativeillūnīillūnīillūnī
vocativeillūnisillūnisillūne
plural
formmasculinefeminineneuter
nominativeillūnēsillūnēsillūnia
genitiveillūniumillūniumillūnium
dativeillūnibusillūnibusillūnibus
accusativeillūnīs
illūnēs		illūnīs
illūnēs		illūnia
ablativeillūnibusillūnibusillūnibus
vocativeillūnēsillūnēsillūnia

illūnis (inl-), e, adj. in-luna,
I. moonless, without moonlight (post-Aug.): nox, Plin. Ep. 6, 20, 14; Sil. 15, 619; Amm. 17, 2, 3.—Also, illūnĭus, a, um: noctis illunio tempore, App. M. 4, p. 150, 29; so, tenebris illuniae caliginis impeditus, id. ib. 9, p. 232, 18.

Origins

  1. Proto-Indo-European*lewk-
  2. Proto-Indo-European*lówksneh₂
  3. Proto-Italic*louksnā
  4. Latinillūnis

Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in- Proto-Indo-European *-ih₂der.? Proto-Italic *-is Latin -is Latin in- -is Latin illūnis From lūna (“moon”) + in- -is (privative adjective-forming circumfix).

Descendants
  • Italianillune
proper nounthird declension
Illunis2
Illunis ? sg (genitive Illunis)
Classical[ˈɪl.lʊ.nɪs]Ecclesiastical[ˈil.lu.nis]

Meaning

  1. singularname of an Aquitanian deity
    Ilunni / deo / Avien(us)Inscription at Lugdunum Convenarum, published in EDCS-10400234

Declension

declension
formsingularplural
nominativeIllunis—
genitiveIllunis—
dativeIllunī—
accusativeIllunem—
ablativeIllune—
vocativeIllunis—

Origins

Probably borrowed from Aquitanian, from Proto-Basque *iLuN. It is likely related to Basque ilun (“dark”).

Quick answers

What does illūnis mean in Latin?
illūnis, a adjective, means “moonless”.
How do you pronounce illūnis?
In classical Latin, [ɪlˈluː.nɪs]; in ecclesiastical (church) Latin, [ilˈluː.nis].
Where does illūnis come from?
Proto-Indo-European *lewk- → Proto-Indo-European *lówksneh₂ → Proto-Italic *louksnā → Latin illūnis.