ὑπόχαλκος
From LSJ
καὶ τοσαύτῃ περιουσίᾳ χρήσασθαι πονηρίας → in the veriest extravagance of malice
English (LSJ)
ον,
A containing a mixture of copper, Pl.R.415b; κανοῦν χρυσοῦν ὑπόχαλκον bronze gilt, IG22.1407.21; ὑπόχαλκον δέ σου τὸ χρυσίον Com.Adesp. (?) ap.Suid. s.v. ὑπόχαλκον: metaph., Plu.2.1b, 65a: cf. ὑπάργυρος, etc. 2 sounding like copper, ὑ. ἠχὼ φέρειν Philostr.VA3.8. 3 of a copper colour, ζῷον ὑπόχαλκον τὴν μορφήν (sc. the οἶστρος or μύωψ) Sch.Od.22.299.
