οἵτινες πόλιν μίαν λαβόντες εὐρυπρωκτότεροι πολύ τῆς πόλεος ἀπεχώρησαν ἧς εἷλον τότε → after taking a single city they returned home, with arses much wider than the city they captured
undĕcĭmus: a, um, num. adj. unusdecimus,
I the eleventh: legio, Liv. 30, 18, 10: annus, Verg. E. 8, 39: dies, Plin. 11, 54, 118, § 283.
ūndĕcĭmus,¹¹ a, um (undecim), onzième : Liv. 30, 18, 10.