LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

pernecessārius

pernecessārius (feminine pernecessāria, neuter pernecessārium)
Classical[pɛr.nɛ.kɛsˈsaː.ri.ʊs]Ecclesiastical[per.ne.t͡ʃesˈsaː.ri.us]

Meaning

  1. adjectivevery necessary

Declension

singular
formmasculinefeminineneuter
nominativepernecessāriuspernecessāriapernecessārium
genitivepernecessāriīpernecessāriaepernecessāriī
dativepernecessāriōpernecessāriaepernecessāriō
accusativepernecessāriumpernecessāriampernecessārium
ablativepernecessāriōpernecessāriāpernecessāriō
vocativepernecessāriepernecessāriapernecessārium
plural
formmasculinefeminineneuter
nominativepernecessāriīpernecessāriaepernecessāria
genitivepernecessāriōrumpernecessāriārumpernecessāriōrum
dativepernecessāriīspernecessāriīspernecessāriīs
accusativepernecessāriōspernecessāriāspernecessāria
ablativepernecessāriīspernecessāriīspernecessāriīs
vocativepernecessāriīpernecessāriaepernecessāria

per-nĕcessārĭus, a, um, adj.
I. Very necessary: tempus, Cic. Att. 5, 21, 1: res, Dig. 4, 4, 11, § 4.—
II. Very closely connected with one: amicus, Cic. Fl. 6, 14: homo, id. de Or. 2, 50, 202; cf.: pro homine intimo ac mihi pernecessario, id. Fam. 13, 69.—Subst.: meus familiaris et Leptae nostri familiarissimi pernecessarius, Cic. Fam. 9, 13, 1: meos, id. ib. 13, 40.

Origins

From per- (“intensifier”) + necessārius (“necessary”).

Quick answers

What does pernecessārius mean in Latin?
pernecessārius, a adjective, means “very necessary”.
How do you pronounce pernecessārius?
In classical Latin, [pɛr.nɛ.kɛsˈsaː.ri.ʊs]; in ecclesiastical (church) Latin, [per.ne.t͡ʃesˈsaː.ri.us].