προσκοπεῖν
From LSJ
κάμψαι διαύλου θάτερον κῶλον πάλιν → bend back along the second turn of the race, turning the bend and coming back for the second leg of the double run, run the homeward course, retrace one's steps
Greek > English (Woodhouse Verbs Reversed)
(see also προσκοπέω): examine, watch, observe carefully, provide for, take measures for
Lexicon Thucydideum
providere, to foresee, provide, 3.83.2, 4.61.6,
praecipue spectare, to aim at especially, 1.120.1.