LATIN DICTIONARYLexicon Latīnum
adverb

prīmum

prīmum (not comparable)
Classical[ˈpriː.mũː]Ecclesiastical[ˈpriː.mum]
№ 252 of the 1,000 commonest wordsMille Verba core vocabulary

Meaning

  1. not comparablefirst, at first, in the first place, first of all, for the first time, in advance, immediately
    [...] urbem Troiānam prīmum dulcisque meōrum / rēliquiās colerem [...].“… first I would safeguard the city of Troy and the dear survivors of my [people ...].”29 BCE – 19 BCE, Vergilius, Aeneis 4.342–343
    omnium primumfirst of all27 BCE – 25 BCE, Titus Livius, Ab urbe condita I.19

In the readers how our graded readers gloss it

first
prīmum — in Seneca, ch. XIII

prīmum, adv., v. primus
I. fin. B.

Origins

Adverbial accusative of prīmus.

Quick answers

What does prīmum mean in Latin?
prīmum, a adverb, means “first, at first, in the first place, first of all, for the first time, in advance, immediately”.
How do you pronounce prīmum?
In classical Latin, [ˈpriː.mũː]; in ecclesiastical (church) Latin, [ˈpriː.mum].