μυρίῳ
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)
Russian (Dvoretsky)
μῡρίῳ: adv.
1) во много раз, гораздо (σοφώτεροι Eur.; βέλτιον Plat.);
2) бесконечно, чрезвычайно (διαφέρειν Plat.).
