LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

acīliānus

acīliānus (feminine acīliāna, neuter acīliānum)
Classical[a.kiː.liˈaː.nʊs]Ecclesiastical[a.t͡ʃi.liˈaː.nus]

Meaning

  1. adjectiveof or pertaining to Acīlius (a Roman name)
    Ad triginta septem milia hostium caesa auctor est Claudius, qui annales Acilianos ex Graeco in Latinum sermonem vertit, captos ad mille octingentos triginta, praedam ingentem partam;That about thirty-seven thousand of the enemy were slain is the statement of Claudius, who translated Acilius' annals out of Greek into the Latin language; that about one thousand eight hundred and thirty were captured and a vast amount of booty taken.prior to 17 CE, Livy [i.e., Titus Livius], translated by Frank Gardener Moore, Livy, with an English Translation, volumes 6 (Books XXIII–XXV), Cambridge, MA: Harvard University Press, published 1940, book 25, chapter 39, from line 12, pages 492–3, Perseus Digital Library:
    Claudius, secutus Graecos Acilianos libros, P. Africanum in ea fuisse legatione tradit eumque Ephesi collocutum cum Hannibale,[…]Claudius, following the Greek history of Acilius, reports that Publius Africanus was a member of that embassy and that at Ephesus he conferred with Hannibal, […]prior to 17 CE, Livy [i.e., Titus Livius], translated by Evan T. Sage, Livy, with an English Translation, volumes 10 (Books XXXV–XXXVII), Cambridge, MA: Harvard University Press, published 1935, book 35, chapter 14, from line 5, pages 40–2, Perseus Digital Library:

Declension

singular
formmasculinefeminineneuter
nominativeacīliānusacīliānaacīliānum
genitiveacīliānīacīliānaeacīliānī
dativeacīliānōacīliānaeacīliānō
accusativeacīliānumacīliānamacīliānum
ablativeacīliānōacīliānāacīliānō
vocativeacīliāneacīliānaacīliānum
plural
formmasculinefeminineneuter
nominativeacīliānīacīliānaeacīliāna
genitiveacīliānōrumacīliānārumacīliānōrum
dativeacīliānīsacīliānīsacīliānīs
accusativeacīliānōsacīliānāsacīliāna
ablativeacīliānīsacīliānīsacīliānīs
vocativeacīliānīacīliānaeacīliāna

Ăcīlĭānus, a, um, adj.,
I. pertaining to Acilius: annales, the annals of C. Acilius Glabrio, Liv. 25, 39; libri, id. 35, 14.

Origins

Proto-Indo-European *-nós Proto-Italic *-nos Proto-Italic *-ānos Latin -ānus Latin acīliānus From Acīlius + -ānus (suffix forming an adjective of belonging or origin).

Quick answers

What does acīliānus mean in Latin?
acīliānus, a adjective, means “of or pertaining to Acīlius (a Roman name)”.
How do you pronounce acīliānus?
In classical Latin, [a.kiː.liˈaː.nʊs]; in ecclesiastical (church) Latin, [a.t͡ʃi.liˈaː.nus].