murderous purpose

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

lage

an ambush, plot, treachery, fraud.

plot/ambush

an ambuscade, i.e. (figuratively) murderous purpose

lay wait

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)