LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

effrēnus

effrēnus (feminine effrēna, neuter effrēnum)
Classical[ɛfˈfreː.nʊs]Ecclesiastical[efˈfrɛː.nus]

Meaning

  1. adjectiveunbridled, unrestrained

Declension

singular
formmasculinefeminineneuter
nominativeeffrēnuseffrēnaeffrēnum
genitiveeffrēnīeffrēnaeeffrēnī
dativeeffrēnōeffrēnaeeffrēnō
accusativeeffrēnumeffrēnameffrēnum
ablativeeffrēnōeffrēnāeffrēnō
vocativeeffrēneeffrēnaeffrēnum
plural
formmasculinefeminineneuter
nominativeeffrēnīeffrēnaeeffrēna
genitiveeffrēnōrumeffrēnārumeffrēnōrum
dativeeffrēnīseffrēnīseffrēnīs
accusativeeffrēnōseffrēnāseffrēna
ablativeeffrēnīseffrēnīseffrēnīs
vocativeeffrēnīeffrēnaeeffrēna

ef-frēnus, a, um (also effrenis mula, Plin. 8, 44, 69, § 171; Sen. de Ira, 3, 15, 2), adj. ex-frenum,
I. free from the bridle, unbridled (not ante Aug., and mostly poet. for effrenatus; cf. also: infrenus, infrenatus).
I. Lit.: equus, Liv. 4, 33, 7.—
II. Trop., unbridled, unrestrained: gens, Verg. G. 3, 382: amor, Ov. M. 6, 465: juventa, Stat. Achill. 1, 277: profatu, id. Silv. 5, 3, 103.

Origins

  1. Proto-Indo-European*h₁éǵʰs
  2. Proto-Italic*eks
  3. Latineffrēnus

Latin ex- Latin frēnum Latin effrēnus From ex- + frēnum (“bridle”).

Quick answers

What does effrēnus mean in Latin?
effrēnus, a adjective, means “unbridled, unrestrained”.
How do you pronounce effrēnus?
In classical Latin, [ɛfˈfreː.nʊs]; in ecclesiastical (church) Latin, [efˈfrɛː.nus].
Where does effrēnus come from?
Proto-Indo-European *h₁éǵʰs → Proto-Italic *eks → Latin effrēnus.