μασχαλιστήρ
From LSJ
English (LSJ)
ῆρος, ὁ,
A girth passing round the horse behind his shoulders and fastened to the yoke by the λέπαδνον, Poll. 1.147, Hsch. II generally, girth, band, A.Pr.71, Hdt.1.215; μ. ἔνλιθος CPR22.5 (ii A.D.). III second dorsal vertebra, Poll.2.178.