κατοπτ-εύω · katopt-euō — LSJ
spy out, ὠτακουστεῖν καὶ κ. v.l. for διοπτ- in X. Cyr. 8.2.10; observe closely, ἅπαντα, φύσιν ἀνθρώπων, Plb. 1.4.11, D.H. Lys. 7; reconnoitre, Plb. 3.45.3; of a night-policeman, POxy. 1033.13 (iv A.D.); visit, explore a country, Plb. 34.1.8, 34.5.9; τὸν οὐράνιον χῶρον Arist. Mu. 391a10; ἐπὶ τοῦ Πηγάσου τὸν οὐρανόν Asclep.Myrl. ap. Sch. Il. 6.155; κ. ἐς . . AP 5.122 (Phld.):—Pass., Plb. 3.37.11, Str. 2.4.6; to be observed, S. Aj. 829; μὴ κατοπτευθῶ παρών Id. Ph. 124; ἐκ τῶν φαινομένων κατωπτευμέν
Astrol., exert a baleful aspect, Petos. ap. Vett.Val. 112.37.