σιδηρεῖον
From LSJ
μισῶ σοφιστὴν ὅστις οὐχ αὑτῷ σοφός → I hate the sage who recks not his own rede, I hate the sage who is not wise for himself, I hate the wise man who is not wise on his own
German (Pape)
[Seite 879] τό, Werkstätte des Eisenarbeiters, die Schmiede; Arist. pol. 1, 11; Theophr.
Dutch (Woordenboekgrieks.nl)
σιδηρεῖον -ου, τό [σίδηρος] ijzermijn.