LATIN DICTIONARYLexicon Latīnum
suffix · neuterthird declension

-ālia

-ālia n pl (genitive -ālium)
Classical[aː.li.a]Ecclesiastical[a.li.a]

Meaning

  1. morphemeforming names of religious festivals

Origins

A substantivisation of the neuter plural forms of the Classical Latin suffix -ālis.

Quick answers

What does -ālia mean in Latin?
-ālia, a suffix, means “forming names of religious festivals”.
How do you pronounce -ālia?
In classical Latin, [aː.li.a]; in ecclesiastical (church) Latin, [a.li.a].