ἄβλαστος
From LSJ
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
English (LSJ)
ον,
A not growing out, of fibre, Id.HP1.2.5:—also ἀβλαστ-ής, ές, not growing, ib.2.2.8; of seeds, not germinating, 8.11.7; of places, unfruitful, ἐδάφη CP2.4.1; τόποι Gp. 9.9.4 (Comp.): metaph., ἀ. πρὸς ἀρετήν Plu.2.38c; πλοῦτος ἄ. Them. Or.18.221d.