ἰχνεύω
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
A track out, hunt after, S.Aj.20, OT 221, 476 (lyr.); ἰ. θῆρας κυσίν E.Cyc.130; κύνες ἰχνεύουσαι hunting by scent, Pl.Lg.654e: metaph., κατὰ σοῦ τὴν ψῆφον ἰ. seeking for a vote of condemnation, Ar.Eq.808; ἰ. τὰ λεχθέντα Pl.Prm.128c; τὴν τοῦ καλοῦ φύσιν Id.R.401c; [σοφίαν] LXX Si.51.15; ἰχνεύεις . . τίς εἴμ' ἐγώ . .; Epigr.Gr.227 (Teos); follow on the track of, emulate, ματραδελφεούς Pi.P.8.35. 2 ἰ. ὄρη to hunt the mountains, X.Cyn.4.9.