σιδηρόσπαρτος
From LSJ
καὶ ὑποθέμενος κατὰ τῆς κεφαλῆς φέρειν τὰς πληγάς, ὡς ἐν ἐκείνῃ τοῦ τε κακοῦ τοῦ πρὸς ἀνθρώπους → and having instructed them to bring their blows against the head, seeing that the harm to humans ... (Josephus, Antiquities of the Jews 1.50)
English (LSJ)
ον,
A sown or produced by iron, Luc.Ocyp.100.
German (Pape)
[Seite 880] durch Eisen gesäet od. verursacht, Luc. Ocyp. 100.