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

mortifer

mortifer (feminine mortifera, neuter mortiferum)
Classical[ˈmɔr.tɪ.fɛr]Ecclesiastical[ˈmɔr.ti.fer]

Meaning

  1. adjectivedeadly, fatal, lethal
    Et sī mortiferum quid biberint nōn eōs nocēbit.And if they drink anything deadly it shall not harm them.Gospel of Mark, Vulgate, from 16:18

Latīnē defined in Latin in our graded readers

Declension

singular
formmasculinefeminineneuter
nominativein -er
mortifer
mortiferamortiferum
genitivemortiferīmortiferaemortiferī
dativemortiferōmortiferaemortiferō
accusativemortiferummortiferammortiferum
ablativemortiferōmortiferāmortiferō
vocativemortifer
mortifere
mortiferamortiferum
plural
formmasculinefeminineneuter
nominativemortiferīmortiferaemortifera
genitivemortiferōrummortiferārummortiferōrum
dativemortiferīsmortiferīsmortiferīs
accusativemortiferōsmortiferāsmortifera
ablativemortiferīsmortiferīsmortiferīs
vocativemortiferīmortiferaemortifera

Phrases from Meissner's Latin Phrase-Book

mortiferam plagam alicui infligere
to inflict a mortal wound on some one.
plagam extremam or mortiferam infligere
to inflict a death-blow.
vulnus (grave, mortiferum) accipere, excipere
to be (seriously, mortally) wounded.
poculum mortis (mortiferum) exhaurire (Cluent. 11. 31)
to drain the cup of poison.

mortĭfer or (rarely) mortĭfĕrus, ĕra, ĕrum, adj. mors-fero,
I. death-bringing, death-dealing, deadly, fatal (class.; syn.: lethalis, funestus): poculum, Cic. Tusc. 1, 29, 71: morbus, id. Div. 1, 30, 63: vulnus, id. Leg. 2, 5, 13: bellum, Verg. A. 6, 279: gravior dolor nec tamen mortiferus, Cels. 4, 2 init.; 5, 26, 22; Aug. de Util. Cred. § 36: res mortifera est inimicus pumice levis, Juv. 9, 95; 10, 10.—Neutr. plur. as subst.: mortĭfĕra, um, deadly things: cur tam multa mortifera terra mortique (deus) disperserit, Cic. Ac. 2, 38, 120 (B. and K. pestifera).—Hence, adv.: mortĭfĕrē, mortally, fatally (post-Aug.): mortifere aegrotare, Plin. Ep. 3, 16, 3: vulnerare, Dig. 9, 2, 36, § 1.

Origins

From mors (“death”) + -fer (“-carrying”), literally “death-bearing”. Calque of Ancient Greek θανατηφόρος (thanatēphóros).

Descendants
  • Catalanmortífer
  • Frenchmortifère
  • Italianmortifero
  • Occitanmortifèr
  • Portuguesemortífero
  • Romanianmortifer
  • Spanishmortífero

Quick answers

What does mortifer mean in Latin?
mortifer, a adjective, means “deadly, fatal, lethal”.
How do you pronounce mortifer?
In classical Latin, [ˈmɔr.tɪ.fɛr]; in ecclesiastical (church) Latin, [ˈmɔr.ti.fer].