What does cydōnius mean in Latin?

cydōnius, a adjective, means “Cydonian (from Cydonia, in Crete); Cretan”.

adjectivefirst/second-declension adjective

cydōnius¹

cydōnius (feminine cydōnia, neuter cydōnium)

singular
form	masculine	feminine	neuter
nominative	cydōnius	cydōnia	cydōnium
genitive	cydōniī	cydōniae	cydōniī
dative	cydōniō	cydōniae	cydōniō
accusative	cydōnium	cydōniam	cydōnium
ablative	cydōniō	cydōniā	cydōniō
vocative	cydōnie	cydōnia	cydōnium

plural
form	masculine	feminine	neuter
nominative	cydōniī	cydōniae	cydōnia
genitive	cydōniōrum	cydōniārum	cydōniōrum
dative	cydōniīs	cydōniīs	cydōniīs
accusative	cydōniōs	cydōniās	cydōnia
ablative	cydōniīs	cydōniīs	cydōniīs
vocative	cydōniī	cydōniae	cydōnia

From Ancient Greek Κῠδωνῐ́ᾱ (Kŭdōnĭ́ā, “Cydonia”) (town in Crete).

noun · femininesecond declension

cydōnius²

cydōnius f (genitive cydōniī or cydōnī)

From Ancient Greek Κῠδωνῐ́ᾱ (Kŭdōnĭ́ā, “Cydonia”) (town in Crete).