σιδηροῦσθαι

From LSJ

σέθεν δὲ χωρὶς οὔτις εὐδαίμων ἔφυ → without you, no one has been happy | without you Health, no one has been happy

Source

Greek > English (Woodhouse Verbs Reversed)

be covered with iron, be overlaid with iron (see also: σιδηρόω)

Lexicon Thucydideum

ferro muniri, to be fortified with iron, 4.100.2.