undetriceni
From LSJ
Τοὺς δούλους ἔταξεν ὡρισμένου νομίσματος ὁμιλεῖν ταῖς θεραπαινίσιν → He arranged for his male slaves to have sex with female slaves at a fixed price (Plutarch, Life of Cato the Elder 21.2)
Latin > English (Lewis & Short)
undētrīcēni: ae, a,
I num. distr. adj. undetriginta, twenty-nine each, twentynine distributively: menses undetricenum tricenumque (dierum) numero alternaverunt, Macr. S. 1, 13, § 4.
Latin > French (Gaffiot 2016)
ūndētrīcēnī, æ, a, qui sont par vingt-neuf, chaque fois vingt-neuf : Macr. Sat. 1, 13, 4.