Quick Definition
ἔννυχος, ον Adv in the night
Strong's Definition
(adverbially) by night
Derivation: neuter of a compound of G1722 (ἐν) and G3571 (νύξ);
KJV Usage: before day
UBS Dictionary of the Greek New Testament
adjc. | νύξ
67.193 · Time · Definite Units of Time: Year, Month, Week, Day, Hour
at night, in the night pertaining to the period between sunset and sunrise In some languages it may be necessary to translate ἔννυχα λίαν in MRK 1:35 as ‘before sunrise’ or ‘long before daylight’ or ‘before the heavens open.’
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
Mounce Concise Greek Dictionary
ἔννυχος ennychos 1x
nocturnal, while still dark, Mk. 1:35*
Abbott-Smith Greek Lexicon
ἔννυχος, -ον
(< νύξ), [in LXX: III Mac 5:5 * ;] (in cl. poët.; prose in late Gk. only)
nightly. Neut., adverbially, ἔννυχα (Rec. -χον), by night: Mk 1:35.†
Moulton & Milligan — Vocabulary of the Greek NT
ἔννυχος. For this poetic adj. (but see 3 Macc 55 and «“Ἔξορ. 110 ed. Halm), which is used adverbially in its only occurrence in the NT (Mk 18° ἔννυχα NBCD a/.), Herwerden (Zex. s.v.) cites a metrical inscr. of v/A.D., 7G VII. 584° ὅταν σε λάβῃ ἔννυχος ἠώς.
Liddell-Scott-Jones — Greek-English Lexicon
ἔννυχος (ennuchos) — at night. ἔννῠχ-ος, ον, = {ἐννύχιος}, ἄγγελος ἦλθε.. ἔννυχος [Refs 8th c.BC+]: neuter plural as adverb, ἔννυχα λίαν ἀναστάς [NT]: comparative -ώτερον[Refs 5th c.BC+]
II. epithet of Hades, [Refs 5th c.BC+]