Dictionary entry

ἐνέδρα

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

ἐν-έδρα, -ας, ἡ

(< ἕδρα, a seat), [in LXX: Jos 8:7, 9, Ps 10:8 (אָרַב)*;]

a lying in wait, an ambush: Ac 23:16 (Rec. ἔνεδρον, a form freq. in LXX), Ac 25:3.†