LATIN DICTIONARYLexicon Latīnum
suffixthird-declension two-termination suffix

-ātilis

-ātilis (neuter -ātile)
Classical[aː.tɪ.lɪs]Ecclesiastical[a.ti.lis]

Meaning

  1. morphemesuffixtwo terminationAdded to noun stems, forms adjectives, usually with the sense "belonging to", "dwelling in"

Origins

From -ātus (“-ate”, “-like”) + -ilis, from the usual suffixation of the latter to perfect passive participles of first conjugation verbs.

Quick answers

What does -ātilis mean in Latin?
-ātilis, a suffix, means “Added to noun stems, forms adjectives, usually with the sense "belonging to", "dwelling in"”.
How do you pronounce -ātilis?
In classical Latin, [aː.tɪ.lɪs]; in ecclesiastical (church) Latin, [a.ti.lis].