LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

profundum

profundum n (genitive profundī)
Classical[prɔˈfʊn.dũː]Ecclesiastical[proˈfun.dum]

Meaning

  1. neuterabyss, depths
    De profundis clamavi ad te, Domine; Domine, exaudi vocem meam. Fiant aures tuæ intendentes in vocem deprecationis meæ. (Vulgate)Out of the depths have I cried unto thee, O Lord. Lord, hear my voice: let thine ears be attentive to the voice of my supplications. (KJV)Psalm 130, verses 1-2
  2. neuterboundless expanse

Declension

declension
formsingularplural
nominativeprofundumprofunda
genitiveprofundīprofundōrum
dativeprofundōprofundīs
accusativeprofundumprofunda
ablativeprofundōprofundīs
vocativeprofundumprofunda

Charlton Lewis's shorter dictionary for students: the same scholarship in plain, modern definitions.

profundum ī, n
profundus, a depth : esse in profundo (aquae): maris, O.— The depths of the sea, deep sea : ex profundo molem ad caelum erigit, Att. ap. C.: profundo Vela dabit, V.: genitor profundi, i. e. Neptune , O.: Merses profundo (gentem), H.—Fig., a depth, abyss : (dixit) in profundo veritatem esse demersam.

Origins

Substantivized from the nominative neuter singular form of the adjective profundus (“deep”).

Quick answers

What does profundum mean in Latin?
profundum, a noun, means “abyss, depths; boundless expanse”.
What is the genitive of profundum?
The genitive singular is profundī. profundum is neuter, second declension.
How do you pronounce profundum?
In classical Latin, [prɔˈfʊn.dũː]; in ecclesiastical (church) Latin, [proˈfun.dum].