Lexical Definition

‎ἐνέχω‎ enéchō (en-ekh'-o) to oppose ^G:V
from ‎ἐν‎ and ‎ἔχω‎

entangle with, have a quarrel against, urge.

• to hold in or upon, i.e. ensnare
• by implication, to keep a grudge

Abbott-Smith

ἐν-έχω [in LXX: Ge 49:23 (סָתַם), Ez 14:4, 7, III Mac 6:10 * ;]
1. to hold in; pass., to be held, entangled: c. dat. rei; fig., ζυγῷ δουλείας, Ga 5:1 (cf. MM, Exp., xii); θλίψρεσιν, II Th 1:4 (cf. ἀσεβείσιν, III Mac 6:10 ).
2. to set oneself against, be urgent against (as Ge 49:23; for con­struction, v. Swete, Mk., l.c.): Mk 6:19, Lk 11:53.†

Abbott-Smith References

Liddell-Scott-Jones

ἐνέχω,

hold or keep fast within, χόλον ἐνέχειν τινί harbour a grudge against one, [Refs 5th c.BC+]

__II passive, with future and aorist middle (see. below), to be held, caught, entangled in, with dative, τῇ πάγῃ [Refs 5th c.BC+]
__II.2 metaphorically, ἐ. ἀπορίῃσι [Refs 5th c.BC+]; ἐν θώματι ἐνέσχετο was seized with wonder, [Refs 5th c.BC+]
__II.3 to be liable or subject to, οὐ δικαίοις Ζεὺς ἐνέξεται λόγοις [Refs 5th c.BC+]; πράγμασιν, λειτουργίαις, [Refs 2nd c.AD+]
__II.3.b in legal formulae, ἐν ἐπιάρῳ κ᾽ ἐνέχοιτο [Refs 6th c.BC+]; ἐ. ἀρᾷ Διός [Refs 5th c.BC+]; ζημίᾳ, αἰτίᾳ, [Refs 5th c.BC+]; νοθείᾳ in an imputation of bastardy, [Refs 2nd c.BC+]
__II.4 in good sense, ἐνέχεσθαι ἀγγελίᾳ meet with a message, [Refs 5th c.BC+]
__II.5 in aorist, come to a standstill, ἔν τινι [Refs 5th c.BC+]
__III intransitive, enter in, pierce, εἴς τι [Refs 5th c.BC+]
__III.2 to be urgent against, τινί [LXX+NT]

_{LSJ Scripture Refs: LXX.Gen.49.23 ☩ Mark.6.19 ☩ Luke.11.53}