LATIN DICTIONARYLexicon Latīnum
adverb

urceātim

urceātim (not comparable)
Classical[ʊr.keˈaː.tĩː]Ecclesiastical[ur.t͡ʃeˈaː.tim]

Meaning

  1. not comparablein buckets, in pailfuls (about rain)
    urceātim pluēbatit was pouring with rain, it was bucketing down

urcĕātim, adv. urceus,
I. with pitchers: Jovem aquam exorabant: itaque statim urceatim pluebat, i. e. in pailfuls (as we say), Petr. 44.

Origins

From urceus (“pitcher, water pot, jug”) + -ātim.

Quick answers

What does urceātim mean in Latin?
urceātim, a adverb, means “in buckets, in pailfuls (about rain)”.
How do you pronounce urceātim?
In classical Latin, [ʊr.keˈaː.tĩː]; in ecclesiastical (church) Latin, [ur.t͡ʃeˈaː.tim].