שֵׁת

From LSJ

οἵτινες πόλιν μίαν λαβόντες εὐρυπρωκτότεροι πολύ τῆς πόλεος ἀπεχώρησαν ἧς εἷλον τότεafter taking a single city they returned home, with arses much wider than the city they captured

Source

English (Strong)

(Numbers from שָׁאָה; tumult: Sheth.
from שִׁית; put, i.e. substituted; Sheth, third son of Adam: Seth, Sheth.
from שִׁית; the seat (of the person): buttock.