σιδήρωσις
From LSJ
εὐηθείης ἠλιθίου ἀπηλλαγμένον → free from silly foolishness, many removes from folly
English (LSJ)
εως, ἡ,
A iron-work, IG22.1672.205, Bito 49.7: in concrete sense,= σιδηρώματα, POxy.1208.14 (iii A.D.).
Greek (Liddell-Scott)
σῐδήρωσις: -εως, ἡ, ἐργασία σιδήρου, σιδηροῦν κατασκεύασμα, τὸ σιδηρώνειν, Βίτωνος Μηχαν. 107.