διοχυρόω
From LSJ
ἵνα οὖν μηδ' ἐν τούτῳ δῷ αὐτοῖς λαβήν (Photius, Fragments on the Epistle to the Romans 483.26) → so that he doesn't give them even here a handle (= an opportunity for refutation)
English (LSJ)
strengthened for ὀχυρόω, Plb.5.46.3 (Pass.).
Spanish (DGE)
fortificar en v. pas., Plb.5.46.3.
Greek (Liddell-Scott)
διοχῠρόω: ἐπιτεταμ. ὀχυρόω, Πολύβ. 5. 46, 3.
Russian (Dvoretsky)
διοχῠρόω: сильно укреплять (διωχυρωμένος τάφροις καὶ χάραξι Polyb.).
German (Pape)
verstärktes ὀχυρόω, Pol. 5.46.3.