νομοδίφας
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)
[ῑ], ου, ὁ, searcher into law, Gloss.
Greek (Liddell-Scott)
νομοδίφας: [ῑ,], ου, ὁ, ὁ ἐρευνῶν τὸν νόμον, Γλωσσ.
German (Pape)
ὁ, der die Gesetze Untersuchende (?).