ῥηξήνωρ

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.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project