What does sītanius mean in Latin?

sītanius, a adjective, means “of this year”.

How do you pronounce sītanius?

In classical Latin, [siːˈta.ni.ʊs]; in ecclesiastical (church) Latin, [siˈtaː.ni.us].

adjectivefirst/second-declension adjective

sītanius (feminine sītania, neuter sītanium)

Classical[siːˈta.ni.ʊs]Ecclesiastical[siˈtaː.ni.us]

singular
form	masculine	feminine	neuter
nominative	sītanius	sītania	sītanium
genitive	sītaniī	sītaniae	sītaniī
dative	sītaniō	sītaniae	sītaniō
accusative	sītanium	sītaniam	sītanium
ablative	sītaniō	sītaniā	sītaniō
vocative	sītanie	sītania	sītanium

plural
form	masculine	feminine	neuter
nominative	sītaniī	sītaniae	sītania
genitive	sītaniōrum	sītaniārum	sītaniōrum
dative	sītaniīs	sītaniīs	sītaniīs
accusative	sītaniōs	sītaniās	sītania
ablative	sītaniīs	sītaniīs	sītaniīs
vocative	sītaniī	sītaniae	sītania

sītănĭus, a, um, adj., = σητάνιος,

I. of this year, this year's: panis, of summer wheat, Plin. 22, 25, 68, § 139.

From Ancient Greek σητάνιος (sētánios).