LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective (nominative masculine singular in -er)

sopōrifer

sopōrifer (feminine sopōrifera, neuter sopōriferum)
Classical[sɔˈpoː.rɪ.fɛr]Ecclesiastical[soˈpɔː.ri.fer]

Meaning

  1. adjectivesoporific; causing deep sleep
    spargens umida mella soporiferumque papaverVirgil, Aeneid, 4

Latīnē defined in Latin in our graded readers

Declension

singular
formmasculinefeminineneuter
nominativein -er
sopōrifer		sopōriferasopōriferum
genitivesopōriferīsopōriferaesopōriferī
dativesopōriferōsopōriferaesopōriferō
accusativesopōriferumsopōriferamsopōriferum
ablativesopōriferōsopōriferāsopōriferō
vocativesopōrifersopōriferasopōriferum
plural
formmasculinefeminineneuter
nominativesopōriferīsopōriferaesopōrifera
genitivesopōriferōrumsopōriferārumsopōriferōrum
dativesopōriferīssopōriferīssopōriferīs
accusativesopōriferōssopōriferāssopōrifera
ablativesopōriferīssopōriferīssopōriferīs
vocativesopōriferīsopōriferaesopōrifera

sŏpōrĭfer, fĕra, fĕrum, adj. sopor-fero,
I. sleep-bringing, inducing sleep, sleepy, drowsy (poet. and in post-Aug. prose): papaver, Verg. A. 4, 486: lac, Plin. 19, 8, 38, § 126: potio, Spart. Hadr. 26 fin.: vis pinnae, Plin. 9, 13, 15, § 42: genus (trychni), id. 21, 31, 105, § 180: somnus, Luc. 3, 8; cf.: aula Somni, Ov. M. 11, 586: nox, Sil. 7, 287; Petr. poët. 128, 6, 1: Lethe, Ov. Tr. 4, 1, 47: vices, Claud. Rapt. Pros. 3, 404.

Origins

Proto-Indo-European *bʰer- Proto-Indo-European *-os Proto-Indo-European *-ós Proto-Indo-European *-ós Proto-Indo-European *bʰorós Proto-Italic *-foros Latin -fer Latin sopōrifer From sopōr (“deep sleep”) + -fer (“-carrying”).

Quick answers

What does sopōrifer mean in Latin?
sopōrifer, a adjective, means “soporific; causing deep sleep”.
How do you pronounce sopōrifer?
In classical Latin, [sɔˈpoː.rɪ.fɛr]; in ecclesiastical (church) Latin, [soˈpɔː.ri.fer].