LATIN DICTIONARYLexicon Latīnum
noun · neuterthird declension

posteriōra

posteriōra n pl (genitive posteriōrum)

Meaning

  1. posterior regions, behind, arse
    Dominus percussit me in posteriora gravi dolore; tam durus sunt excrementa, ut multa vi ad sudorem extrudere cogar, et quo diutius differo, magis durescunt.The Lord has struck me in the posterior with great suffering; so hard are my excrements, that I am forced to push them out with great strain to the point of sweat, and when I put it off, they become harder.Martin Luther in a letter to Philip Melanchthon, 5 December 1521, from the Weimarer Ausgabe BR 2, page 333

Latīnē defined in Latin in our graded readers

Declension

declension
formsingularplural
nominative—posteriōra
genitive—posteriōrum
dative—posteriōribus
accusative—posteriōra
ablative—posteriōribus
vocative—posteriōra

Quick answers

What does posteriōra mean in Latin?
posteriōra, a noun, means “posterior regions, behind, arse”.
What is the genitive of posteriōra?
The genitive singular is posteriōrum. posteriōra is neuter, third declension.