σιδήρειος

οὗτος ἐγὼ ταχυτᾶτι· χεῖρες δὲ καὶ ἦτορ ἴσο → this is my speed: my hands and heart are its equal, such am I for speed; my hands and heart are just as good

German (Pape)

[Seite 879] poet. = σιδήρεος, w. m. s.; – σιδήρειον, = σιδήριον, Schol. Eur. Hipp. 222.

α, ον :
1 de fer;
2 dur comme le fer, inflexible, impitoyable;
3 qui provient du fer.
Étymologie: σίδηρος.

of iron; ὀρυμαγδός, ‘of iron weapons,’ Il. 17.424; fig., οὐρανός, κραδίη, θῦμός, ‘hard,’ ‘unwearied,’ etc., Il. 22.357, Il. 24.205, Od. 12.280.