G4423
πτόησις
fear
πτόησις, -εως, ἡ (πτοέω) [in LXX: Pro.3:25 (פַּחַד), Sir 50:4 א1, 1Ma.3:25 R * ;] a fluttering, excitement, caused by any emotion, but esp. by fear, hence, terror: φοβεῖσθαι πτόησιν, to be afraid with (cogn. accusative) or of any terror (see ICC, in l): 1Pe.3:6.† (AS)
The KJV translates G4423 in the following manner:
amazement (2x)
Full Thayer's lexicon entry
πτόησις — ptóēsis
πτόησις, πτοησεως, ἡ (πτοέω), terror: φοβεῖσθαι πτόησιν, equivalent to φόβον φοβεῖσθαι, to be afraid with terror (others take πτόησις objectively: R. V. text to be put in fear by any terror), 1Pe 3:6 (Pro 3:25); see φοβέω, 2; (Winers Grammar, § 32, 2; Buttmann, § 131, 5. (1Ma 3:25; Philo, quis rev. div. her. § 51)).
1 occurrence