διεξιχνεύω
From LSJ
ἐὰν ταῖς γλώσσαις τῶν ἀνθρώπων λαλῶ καὶ τῶν ἀγγέλων, ἀγάπην δὲ μὴ ἔχω, γέγονα χαλκὸς ἠχῶν ἢ κύμβαλον ἀλαλάζον → though I speak with the tongues of men and of angels and have not charity I am become as sounding brass or a tinkling cymbal
English (LSJ)
A search through, δικαιώματα PMasp.167.35 (vi A. D.).
Spanish (DGE)
seguir el rastro de, investigar τοὺς τόπους καὶ τοὺς οἰκοδεσπότας Vett.Val.119.11, cf. 142.24, 332.23
•rebuscar en ὁπόταν ... διεξιχνεύσω πάντα τὰ ἐμὰ δικαιώματα καὶ ἐξευρήσω τ[αύτην] (ἀσφάλειαν) PMasp.167.35 (VI d.C.).