Quick Definition
I persist, insist
Strong's Definition
to avail further, i.e. (figuratively) insist stoutly
Derivation: from G1909 (ἐπί) and G2480 (ἰσχύω);
KJV Usage: be the more fierce
Thayer's Greek Lexicon
ἐπισχύω: (imperfect ἐπίσχυον);
1. transitive, to give additional strength; to make stronger (Sir_29:1; Xenophon, oec. 11, 13).
2. intransitive, to receive greater strength, grow stronger (1Ma_6:6; Theophr, Diodorus): ἐπίσχυον λέγοντες, they were the more urgent saying, i. e. they alleged the more vehemently, Luk_23:5.
Mounce Concise Greek Dictionary
ἐπισχύω epischuō 1x
to strengthen;
intrans. to gather strength;
met. to be urgent, to press on a point, insist, Luk_23:5
Abbott-Smith Greek Lexicon
** ἐπ -ισχύω ,
[in LXX : Sir_29:1 , 1Ma_6:6 * ;]
1. to make stronger (Sir, l.c .).
2. to grow stronger; metaph ., be more urgent: Luk_23:5 .†
Moulton & Milligan — Vocabulary of the Greek NT
ἐπισχύω [page 247]
An interesting parallel to Luk_23:5 is afforded by Vett Val. p. 48 .6 τῶν δὲ τοιούτων καὶ ὁ λόγος ἐπισχύσει πρὸς συμβουλίαν ἢ διδαχήν . For the compound συνεπισχύω see BGU IV. 1189 .14 (B.C. 1) ἀξιῶ ἐὰν φαίνηται ἐπιτάξαι τῷ α̣(ὐτῷ ) τοπάρχηι συνεπισχύε [ι ]ν μοι κτλ .
Liddell-Scott — Intermediate Greek Lexicon
ἐπισχύω fut. ύσω "to make strong or powerful", Xen. intr. "to prevail, be urgent", NTest.
STEPBible — Tyndale Abridged Greek Lexicon
ἐπ-ισχύω
[in LXX: Sir.29:1, 1Ma.6:6 * ;]
__1. to make stronger (Sir, l.with).
__2. to grow stronger; metaphorically, be more urgent: Luk.23:5.†
(AS)