Quick Definition
beyond
Strong's Definition
upon those parts of, i.e. on the further side of
Derivation: from G1909 (ἐπί) and (the accusative case plural neuter of) G1565 (ἐκεῖνος);
KJV Usage: beyond
Thayer's Greek Lexicon
ἐπέκεινα (equivalent to ἐπ' ἐκεῖνα namely, μέρη (cf. Winers Grammar, § 6, the passage cited at the end)), adv, beyond: with the genitive, Βαβυλῶνος, Act_7:43. (Often in Greek writings from Herodotus down both with and without the genitive; in the Sept. Amo_5:27; Gen_35:16; Jer_22:19.)
Mounce Concise Greek Dictionary
ἐπέκεινα epekeina 1x
BDAG 361, say it is an adverb with the gen.; others classify it as an improper prep., gen., on yonder side, beyond, Act_7:43
Abbott-Smith Greek Lexicon
ἐπ -έκεινα ,
adv.
( = ἐπ᾿ ἐκεῖνα ),
[in LXX : Lev_22:27 , Num_32:19 , al. ( H1973 ), etc.;]
beyond; c . gen ., Act_7:43 ( LXX ) †
Liddell-Scott — Intermediate Greek Lexicon
ἐπέκεινα ἐπ-έκεινα for ἐπ᾽ ἐκεῖνα, "on yonder side, beyond", Lat. ultra, c. gen., Plat. , Xen. :—with Article, τὸ ἐπέκεινα, attic τοὐπ., or τὰ ἐπ., attic τἀπ., "the part beyond, the far side", τὰ ἐπ. τῆς Εὐρώπης Hdt. ; τοὐπ. τῆσδε γῆς "beyond" it, Eur. : absol., ἐν τῷ ἐπ. "on the far side", Thuc. ; εἰς τὸ ἐπ. Plat.
STEPBible — Tyndale Abridged Greek Lexicon
ἐπ-έκεινα
adv. (= ἐπ᾽ ἐκεῖνα), [in LXX: Lev.22:27, Num.32:19, al. (הָלְאָה), etc. ;]
beyond; with genitive, Act.7:43 (LXX) †
(AS)