ὀπτάνομαιoptánomaiStrong's G3700

to gaze (i.e. with wide-open eyes, as at something remarkable; and thus differing from G991, which denotes simply voluntary observation; and from G1492, which expresses merely mechanical, passive or casual vision; while G2300, and still more emphatically its intensive G2334, signifies an earnest but more continued inspection; and G4648 a watching from a distance)

Derivation: a (middle voice) prolonged form of the primary (middle voice) ὄπτομαι op'-tom-ahee; which is used for it in certain tenses; and both as alternate of G3708