ἔμπειρος τῆς χώρας

From LSJ

ἔνδον γὰρ ἁνὴρ ἄρτι τυγχάνει, κάρα στάζων ἱδρῶτι καὶ χέρας ξιφοκτόνους → yes, the man is now inside, his face and hands that have slaughtered with the sword dripping with sweat

Source

Greek > English (Woodhouse)

acquainted with the topography of a place