πτῆξις
From LSJ
Δύο γὰρ, ἐπιστήμη τε καὶ δόξα, ὧν τὸ μὲν ἐπίστασθαι ποιέει, τὸ δὲ ἀγνοεῖν → Two different things are science and belief: the one brings knowledge, the other ignorance (Hippocrates)
English (LSJ)
-εως, ἡ, (πτήσσω) terror, Aq., Sm., Thd.Pr.18.7.
German (Pape)
[Seite 810] ἡ, das Schrecken, Erschrecken, Arist. Mrab. 157.
Russian (Dvoretsky)
πτῆξις: εως ἡ страх, испуг (Arst. - v.l. к πῆξις).
Greek (Liddell-Scott)
πτῆξις: ἡ, (πτήσσω) φόβος, μνημονεύεται ἐκ τοῦ Ἀριστ. π. Θαυμασ., Ἀκύλ. ἐν Παλ. Διαθ., κλπ.