LATIN DICTIONARYLexicon Latīnum
adjectivethird-declension two-termination adjective

exsomnis

exsomnis (neuter exsomne)
Classical[ɛksˈsɔm.nɪs]Ecclesiastical[eksˈsɔm.nis]

Meaning

  1. two terminationsleepless, watchful

Latīnē defined in Latin in our graded readers

Choosing the right word Döderlein's Latin Synonyms

Vigil · Insomnis · Exsomnis

Vigil denotes the state of being awake as positive, and involves consciousness and will, and the application of vital energy, like ἄγρυπνος; whereas insomnis and exsomnis, only negatively, as sleepless, ἄϋπνος; but the insomnis cannot sleep; the exsomnis will not sleep. Tac. Ann. i. 65. Cum oberrarent tentoriis insomnes magis quam pervigiles. Vell. P. ii. 88. Mæcenas ubi rem vigiliam exigeret, sane exsomnis. Hor. Od. iii. 7, 6. Frigidas noctes non sine multis insomnis lacrimis agit; comp. with 25, 7. Non secus in jugis exsomnis stupet Evias; or Virg. Æn. ix. 167, with vi. 556. (iv. 444.)

Declension

singular
formmasculinefeminineneuter
nominativeexsomnisexsomnisexsomne
genitiveexsomnisexsomnisexsomnis
dativeexsomnīexsomnīexsomnī
accusativeexsomnemexsomnemexsomne
ablativeexsomnīexsomnīexsomnī
vocativeexsomnisexsomnisexsomne
plural
formmasculinefeminineneuter
nominativeexsomnēsexsomnēsexsomnia
genitiveexsomniumexsomniumexsomnium
dativeexsomnibusexsomnibusexsomnibus
accusativeexsomnīs
exsomnēs		exsomnīs
exsomnēs		exsomnia
ablativeexsomnibusexsomnibusexsomnibus
vocativeexsomnēsexsomnēsexsomnia

ex-somnis (exomn-), e, adj. somnus,
I. sleepless, wakeful, watchful (poet. and in post-Aug. prose; cf.: insomnis, vigil, vigilans): vir, Vell. 2, 88, 2: (Tisiphone) Vestibulum exsomnis servat noctesque diesque, Verg. A. 6, 556; Sil. 9, 5: animo exsomnis, Vell. 2, 127 fin.

Origins

From ex- + somnus (“sleep”) + -is.

Quick answers

What does exsomnis mean in Latin?
exsomnis, a adjective, means “sleepless, watchful”.
How do you pronounce exsomnis?
In classical Latin, [ɛksˈsɔm.nɪs]; in ecclesiastical (church) Latin, [eksˈsɔm.nis].