What does acanthius mean in Latin?

acanthius, a adjective, means “spiny, thorny”.

How do you pronounce acanthius?

In classical Latin, [aˈkan.tʰi.ʊs]; in ecclesiastical (church) Latin, [aˈkan.ti.us].

adjectivefirst/second-declension adjective

acanthius (feminine acanthia, neuter acanthium)

Classical[aˈkan.tʰi.ʊs]Ecclesiastical[aˈkan.ti.us]

singular
form	masculine	feminine	neuter
nominative	acanthius	acanthia	acanthium
genitive	acanthiī	acanthiae	acanthiī
dative	acanthiō	acanthiae	acanthiō
accusative	acanthium	acanthiam	acanthium
ablative	acanthiō	acanthiā	acanthiō
vocative	acanthie	acanthia	acanthium

plural
form	masculine	feminine	neuter
nominative	acanthiī	acanthiae	acanthia
genitive	acanthiōrum	acanthiārum	acanthiōrum
dative	acanthiīs	acanthiīs	acanthiīs
accusative	acanthiōs	acanthiās	acanthia
ablative	acanthiīs	acanthiīs	acanthiīs
vocative	acanthiī	acanthiae	acanthia

Ăcanthĭus, a, um, adj.,

I. from Acanthus, a town in Macedonia: sal, Plin. 31, 7, 41, § 85.

From Ancient Greek ἄκανθος (ákanthos).