ἰχνοσκοπέω
From LSJ
νοεῖν γάρ ἐστι κρεῖττον καὶ σιγὴν ἔχειν → it's better, you see, to understand and yet say nothing (Menander)
English (LSJ)
A look at the track or traces, ἐν στίβοισι τοῖς ἐμοῖς A.Ch. 227, cf. S.Ichn.7; ἰ. καὶ στιβεύειν τὸ μέλλον Plu.2.399a.
German (Pape)
[Seite 1277] die Spur betrachten, ausspüren; ἐν στίβοις Aesch. Ch. 226; καὶ στιβεύειν Plut. de Pyth. orac. 10.