ὑπονομεύω
From LSJ
καὶ κεραμεὺς κεραμεῖ κοτέει καὶ τέκτονι τέκτων, καὶ πτωχὸς πτωχῷ φθονέει καὶ ἀοιδὸς ἀοιδῷ → and potter is ill-disposed to potter, and carpenter to carpenter, and the beggar is envious of the beggar, the singer of the singer
English (LSJ)
A undermine, sap, Din. ap. Phot., Anon. ap. Suid.: τὴν στερεὰν γῆν J.BJ 7.2.2. 2 metaph., stir up by secret arts, stratagems, or intrigues, ὑ. Ῥωμαίοις πόλεμον D.H.3.23:—Pass., v.l. for -νοθ-, LXX 2 Ma.4.26.
German (Pape)
[Seite 1227] untergraben, unterirdische Gänge od. Minen machen, Din. bei Suid. – Uebertr., durch heimliche Listen untergraben, Ränke anstiften, πόλεμόν τινα D. Hal. 3, 23.