LATIN DICTIONARYLexicon Latīnum
numeralfirst/second-declension adjective

octingentēsimus

octingentēsimus (feminine octingentēsima, neuter octingentēsimum)
Classical[ɔk.tɪŋ.ɡɛnˈteː.sɪ.mʊs]Ecclesiastical[ok.tin̠ʲ.d͡ʒenˈtɛː.s̬i.mus]

Meaning

  1. adjectiveeight hundredth

Declension

singular
formmasculinefeminineneuter
nominativeoctingentēsimusoctingentēsimaoctingentēsimum
genitiveoctingentēsimīoctingentēsimaeoctingentēsimī
dativeoctingentēsimōoctingentēsimaeoctingentēsimō
accusativeoctingentēsimumoctingentēsimamoctingentēsimum
ablativeoctingentēsimōoctingentēsimāoctingentēsimō
vocativeoctingentēsimeoctingentēsimaoctingentēsimum
plural
formmasculinefeminineneuter
nominativeoctingentēsimīoctingentēsimaeoctingentēsima
genitiveoctingentēsimōrumoctingentēsimārumoctingentēsimōrum
dativeoctingentēsimīsoctingentēsimīsoctingentēsimīs
accusativeoctingentēsimōsoctingentēsimāsoctingentēsima
ablativeoctingentēsimīsoctingentēsimīsoctingentēsimīs
vocativeoctingentēsimīoctingentēsimaeoctingentēsima

octingentēsĭmus (
I. sync. octigesimus, acc. to Prisc. p. 1353 P.), a, um, ord. num. adj. [octingenti], the eight hundredth: annus, Cic. Sen. 2, 4.

Origins

From octingentī (“eight hundred”) + -ēsimus (“-th”).

Quick answers

What does octingentēsimus mean in Latin?
octingentēsimus, a numeral, means “eight hundredth”.
How do you pronounce octingentēsimus?
In classical Latin, [ɔk.tɪŋ.ɡɛnˈteː.sɪ.mʊs]; in ecclesiastical (church) Latin, [ok.tin̠ʲ.d͡ʒenˈtɛː.s̬i.mus].