undetricesimus

• (Classical Latin) IPA^(key): [uːn.deː.triːˈkeː.sɪ.mʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [un̪.d̪e.t̪riˈt͡ʃɛː.s̬i.mus]

ūndētrīcēsimus (feminine ūndētrīcēsima, neuter ūndētrīcēsimum); first/second-declension numeral

1. twenty-ninth
   • 27 BCE – 25 BCE, Titus Livius, Ab Urbe Condita 25.36:

     anno octauo postquam in Hispaniam uenerat, Cn. Scipio undetricesimo die post fratris mortem est interfectus.

     Cneius Scipio was slain in the eighth year after his arrival in Spain, and on the twenty-ninth day after the death of his brother.

   • c. 177 CE, Aulus Gellius, Noctes Atticae 10.5:

     “Avarus” non simplex vocabulum, sed iunctum copulatumque esse P. Nigidius dicit in commentariorum undetricesimo.

     Publius Nigidius, in the twenty-ninth book of his Commentaries, declares that avarus is not a simple word, but is compounded of two parts.

First/second-declension adjective.