Ἐπ' ἀνδρὶ δυστυχοῦντι μὴ πλάσῃς κακόν → Miseri miseriae ne quid affingas mali → Vermehre nicht dem Unglücksraben noch sein Leid
P. μῖλαξ, σμῖλαξ, ἡ (Plato) τάξος.
The word is also found in Eur., Bacchae 703, and Aristophanes, Nubes 1007, but apparently with a different meaning.