σειρᾱφόρος, Ion.
σειρηφ-,ον(sc.ἵππος), a horse
A. which draws by the trace only(being harnessed by the side of the pair under the yoke,οἱ ζύγιοι),trace-horse: hence metaph., sts.yoke-mate, coadjutor, A. Ag. 842 ; sts.one who has light work, ib. 1640 , cf. Ar. Nu. 1300 ;ς. [κάμηλος]attached like a trace-horse, Hdt. 3.102 .
II. carrying a lasso, v. σειρά
1.3 .