ὑποτειχίζειν
From LSJ
Ἐπ' ἀνδρὶ δυστυχοῦντι μὴ πλάσῃς κακόν → Miseri miseriae ne quid affingas mali → Vermehre nicht dem Unglücksraben noch sein Leid
Greek > English (Woodhouse Verbs Reversed)
(see also ὑποτειχίζω): build an intercepting wall, build an intersecting wall