Liddell–Scott–Jones: ἱμάσθλη

ἱμάσθλη[ῐ],ἡ,(ἱμάς)

A. thongof a whip,whip, Il. 23.582 , Od. 13.82 , Eranos 13.88 (pl.): metaph.,νηὸς ἱ., i.e. ship'srudder,

AP 6.28 ( Jul. ); later,any thong, Opp. C. 4.217 .