ἱμάσθλη
From LSJ
πάτερ, ἄφες αὐτοῖς, οὐ γὰρ οἴδασιν τί ποιοῦσιν → father, forgive them, for they know not what they do
English (LSJ)
[ῐ], ἡ, (ἱμάς)
A thong of a whip, whip, Il.23.582, Od.13.82, Eranos 13.88(pl.): metaph., νηὸς ἱ., i.e. ship's rudder, AP6.28 (Jul.); later, any thong, Opp.C.4.217.
German (Pape)
[Seite 1252] ἡ, der Peitschenriemen, die Peitsche, Il. 23, 582, ἵπποι ὁρμηθέντες ὑπὸ πληγῇσιν ἱμάσθλης, Od. 13, 81; sp. D., wie Ap. Rh. 3, 871; übh. Riemen, wie Opp. Cyn. 4, 217.