Liddell–Scott–Jones: ῥηξήν-ωρ

ῥηξήν-ωρ,ορος,ὁ,

A. breaking armed ranks, in Hom. always epith. of Achilles, Il. 7.228 , Od. 4.5 , etc., cf. Hes. Th. 1007 ; of Apollo, AP 9.525.18 .