Matthew 2:14νυκτὸς
So he got up, took the Child and His mother by night, and withdrew to Egypt,
Luke 2:8νυκτὸς
And there were shepherds residing in the fields nearby, keeping watch over their flocks by night.
John 3:2νυκτὸς
He came to Jesus at night and said, “Rabbi, we know that You are a teacher who has come from God. For no one could perform the signs You are doing if God were not with him.”
Acts 5:19νυκτὸς
But during the night an angel of the Lord opened the doors of the jail and brought them out, saying,
1 Thessalonians 2:9νυκτὸς
Surely you recall, brothers, our labor and toil. We worked night and day so that we would not be a burden to anyone while we proclaimed to you the gospel of God.
Revelation 4:8νυκτὸς
And each of the four living creatures had six wings and was covered with eyes all around and within. Day and night they never stop saying: “Holy, Holy, Holy, is the Lord God Almighty, who was and is and is to come!”

Abbott-Smith

νύξ genitive νυκτός, ἡ,
[in LXX chiefly for לַיִל ;]
night: Mat.12:40, Mrk.6:48, Jhn.13:30, al.; genitive temp. (of the time within which something happens; M, Pr., 73; B1., § 36, 13), νυκτός, by night, Mat.2:14, Jhn.3:2, 1Th.5:7, al.; ν. κ. ἡμέρας, Mrk.5:5, 1Th.2:9, al.; ἡμέρας κ. ν., Luk.18:7, Rev.4:8, al.; μέσης ν., Mat.25:6; dative, νυκτί, in ans. to the question, "when?" (rare in cl.; Hdt., Soph.), ταύτῃ τ. ν., Luk.12:20, al.; ἐκείνῃ Act.12:6; ἐπιούσῃ, Act.23:11; accusative durat. (Bl., § 34, 8; Kühner3, III, 314b), ν. κ. ἠμέραν, Luk.2:37 Act.20:31; τ. νύκτας, Luk.21:37; διὰ νυκτός (= cl. νυκτός; Bl., § 42, 1; 46, 7), Act.5:19 16:9 17:10 23:31; δι᾽ ὅλης ν., Luk.5:5; κατὰ μέσον τῆς ν. (Bl., § 47, 6), Act.27:27. Metaphorical: Jhn.9:4, Rom.13:12, 1Th.5:5
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.