χωνευτήριον
From LSJ
ποταμῷ γὰρ οὐκ ἔστιν ἐμβῆναι δὶς τῷ αὐτῷ → it is impossible to step twice in the same river, you cannot step twice into the same rivers
English (LSJ)
τό,
A smelting-furnace, LXX 3 Ki.8.51, al.; cf. χωνεῖον.
German (Pape)
[Seite 1386] τό, Ort zum Schmelzen, Schmelzofen, Sp., wie Schol. Nic. Al. 51.