Quick Definition
an ambush, plot, treachery, fraud
Strong's Definition
an ambuscade, i.e. (figuratively) murderous purpose
Derivation: feminine from G1722 (ἐν) and the base of G1476 (ἑδραῖος);
KJV Usage: lay wait
Thayer's Greek Lexicon
ἔνεδρα, ἐνέδρας, ἡ (from ἐν and ἕδρα a seat), a lying in wait, ambush: Act_23:16 (Rec.st τό ἔνεδρον, which see); ἐνέδραν ποιεῖν, Act_25:3. (the Sept.; Thucydides and following.)
Mounce Concise Greek Dictionary
ἐνέδρα enedra 2x
pr. a sitting in or on a spot; an ambush, or lying in wait, Act_23:16 ; Act_25:3
Abbott-Smith Greek Lexicon
ἐν -έδρα , -ας , ἡ
( < ἕδρα , a seat ),
[in LXX : Jos_8:7-9 , Psa_10:8 ( H693 ) * ;]
a lying in wait, an ambush: Act_23:16 ( Rec. ἔνεδρον , a form freq . in LXX ), Act_25:8 .†
Moulton & Milligan — Vocabulary of the Greek NT
ἐνέδρα [page 213]
The derived meaning of treachery, fraud, is illustrated by P Oxy 1. 62 .10 (iii/A.D.) ἵνα μὴ ἐκ τῆς σῆς ἀμελείας ἐνέδρα περὶ τὴν ἐμβολὴν γέηται , in order that there may be no fraud in the lading through any neglect of yours (Edd.) : cf. ib. XII. 1428 .5 (iv/A.D.) ὑπ ]ὲρ τοῦ τοίνυν μὴ ἐνέδραν ἐπακολουθῆσαι , so as to prevent any deception from ensuing, ib. 1455 .12 (A.D. 275) εἰς τὸ μηδεμί [α ]ν ἐ̣ν̣ε̣δ̣ρ̣[αν ] ἐπακολ [ουθε ]ῖ [ν . For the form ἐνεδρεία cf. the endorsement of a petition to the logistes ἐνεδρείας γεγενημένης , concerning a case of fraud (P Oxy VI. 900 .19 A.D. 322).
Liddell-Scott — Intermediate Greek Lexicon
ἐνέδρα ἐνέδρα, ἡ, (n e)nedr h_hs stem_acc fem ) "a sitting in: a lying in wait, ambush", Thuc. , Xen. "the men laid in ambush", id=Xen.
STEPBible — Tyndale Abridged Greek Lexicon
ἐν-έδρα, -ας, ἡ
(ἕδρα, a seat), [in LXX: Jos.8:7-9, Psa.10:8 (אָרַב)* ;]
a lying in wait, an ambush: Act.23:16 (Rec. ἔνεδρον, a form frequently in LXX), Act.25:8.†
(AS)