Dictionary entry

ἐκταράσσω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

ἐκ-ταράσσω

[in LXX: Ps 18:4 (בּﬠת pi.), Ps 88:16 (צמת), Wi 17:3, 4 18:17 *;]

to throw into great trouble, agitate: Ac 16:20.†