What does duodēquīnquāgēsimus mean in Latin?

duodēquīnquāgēsimus, a numeral, means “forty-eighth”.

How do you pronounce duodēquīnquāgēsimus?

In classical Latin, [du.ɔ.deː.kʷiːŋ.kʷaːˈɡeː.sɪ.mʊs]; in ecclesiastical (church) Latin, [du.o.de.kʷiŋ.kʷaˈd͡ʒɛː.s̬i.mus].

numeralfirst/second-declension numeral

duodēquīnquāgēsimus (feminine duodēquīnquāgēsima, neuter duodēquīnquāgēsimum)

Classical[du.ɔ.deː.kʷiːŋ.kʷaːˈɡeː.sɪ.mʊs]Ecclesiastical[du.o.de.kʷiŋ.kʷaˈd͡ʒɛː.s̬i.mus]

singular
form	masculine	feminine	neuter
nominative	duodēquīnquāgēsimus	duodēquīnquāgēsima	duodēquīnquāgēsimum
genitive	duodēquīnquāgēsimī	duodēquīnquāgēsimae	duodēquīnquāgēsimī
dative	duodēquīnquāgēsimō	duodēquīnquāgēsimae	duodēquīnquāgēsimō
accusative	duodēquīnquāgēsimum	duodēquīnquāgēsimam	duodēquīnquāgēsimum
ablative	duodēquīnquāgēsimō	duodēquīnquāgēsimā	duodēquīnquāgēsimō
vocative	duodēquīnquāgēsime	duodēquīnquāgēsima	duodēquīnquāgēsimum

plural
form	masculine	feminine	neuter
nominative	duodēquīnquāgēsimī	duodēquīnquāgēsimae	duodēquīnquāgēsima
genitive	duodēquīnquāgēsimōrum	duodēquīnquāgēsimārum	duodēquīnquāgēsimōrum
dative	duodēquīnquāgēsimīs	duodēquīnquāgēsimīs	duodēquīnquāgēsimīs
accusative	duodēquīnquāgēsimōs	duodēquīnquāgēsimās	duodēquīnquāgēsima
ablative	duodēquīnquāgēsimīs	duodēquīnquāgēsimīs	duodēquīnquāgēsimīs
vocative	duodēquīnquāgēsimī	duodēquīnquāgēsimae	duodēquīnquāgēsima

dŭŏ-dē-quinquāgēsĭmus, a, um,

I. ordin. num., the forty-eighth: anno, Cic. Brut. 44: die, Col. 9, 14, 4.

From duodēquīnquāgintā (“forty-eight”).