From existemi; a displacement of the mind, i.e. Bewilderment, "ecstasy" -- + be amazed, amazement, astonishment, trance.
see GREEK existemi
1. universally, in Greek writing, any casting down of a thing from its proper place or state; displacement (Aristotle, Plutarch).
2. a throwing of the mind out of its normal state, alienation of mind, whether such as makes a lunatic (διανοίας, Deuteronomy 28:28; τῶν λογισμῶν, Plutarch, Sol. 8), or that of the man who by some sudden emotion is transported as it were out of himself, so that in this rapt condition, although he is awake, his mind is so drawn off from all surrounding objects and wholly fixed on things divine that he sees nothing but the forms and images lying within, and thinks that he perceives with his bodily eyes and ears realities shown him by God (Philo,quisrerumdivin.heres § 53 (cf. 51; B. D. under the word, Trance; Delitzsch, Psychol. 5:5)): ἐπέπεσεν (Rec., others ἐγένετο) ἐπ' ἔκστασις, Acts 10:10; εἶδεν ἐν ἐκστάσει ὅραμα, Acts 11:5; γενέσθαι ἐν ἐκστάσει, Acts 22:17, cf. 2 Corinthians 12:2f.
3. In the O. T. and the New amazement (cf. Longinus, 1, 4; Stobaeus, flor. tit. 104, 7), the state of one who, either owing to the importance or the novelty of an event, is thrown into a state of blended fear and wonder: εἶχεν αὐτάς τρόμος καί ἔκστασις, Mark 16:8; ἐξέστησαν ἐκστάσει μεγάλη, Mark 5:42 (Ezekiel 26:16); ἔκστασις ἔλαβεν ἅπαντας, Luke 5:26; ἐπλήσθησαν θάμβους καί ἐκστάσεως, Acts 3:10; (for חֲרָדָה, trembling, Genesis 27:33; 1 Samuel 14:15, etc.; פַּחַד, fear, 2 Chronicles 14:14, etc.).