Lexical Definition

‎λευκός‎ leukós (lyoo-kos') white G:A
from ("light")

white.

Usage: 17 forms in 54 verses
Form Translated As     In Verse(s)
λευκὸσ white Luke.9.29 • Rev.6.2
λευκὸν white Matt.28.3 • Rev.1.14 • Rev.19.14 • Rev.20.11
λευκὴν white Matt.5.36 • Mark.16.5
λευκὴ white Rev.6.11
λευκὰσ white Rev.7.9
λευκὰ white Matt.17.2 • Mark.9.3 • Rev.3.18
λευκόσ white LXX.Song.5.10 • Rev.19.11
λευκόν white LXX.Gen.30.37 • LXX.Exod.16.14 • LXX.Exod.16.31 • LXX.Lev.13.13 • LXX.Lev.13.16 • LXX.Lev.13.17 • LXX.Lev.13.24 • LXX.Dan.7.9
λευκοῖσ white John.20.12 • Rev.3.4 • Rev.3.5 • Rev.4.4 • Rev.19.14
λευκοί white LXX.Gen.49.12 • LXX.Zech.1.8 • LXX.Zech.6.3 • LXX.Zech.6.6
λευκαῖσ white Acts.1.10
λευκαὶ white Rev.1.14
λευκαί white John.4.35
λευκήν white LXX.Lev.13.4 • LXX.Lev.13.10 • LXX.Lev.13.20 • LXX.Lev.13.25 • Rev.2.17
λευκή a white LXX.Lev.13.10 • LXX.Lev.13.19 • LXX.Lev.13.26 • LXX.Lev.13.42
should be white LXX.Lev.13.4
white LXX.Lev.13.3 • LXX.Lev.13.21 • LXX.Lev.13.43 • Rev.14.14
λευκάσ white Rev.7.13
λευκά white LXX.Gen.30.37 • LXX.Gen.31.8 • LXX.Gen.31.8 • LXX.Eccl.9.8

Abbott-Smith

λευκός, ή, -όν, [in LXX chiefly for לָבָן;]
1. bright, brilliant: of clothing, Mt 17:2, Mk 9:3 16:5, Lk 9:29, Ac 1:10, Re 3:5 4:4 6:11 7:9, 13 19:14 (cf. Ec 9:8); ὡς χιών, Mt 28:3; ἐν λ. (sc. ἱματίοις), Jo 20:12, Re 3:4; θρόνος, Re 20:11.
2. white: Mt 5:36, Re 1:14 2:17 4:4 6:2 14:14 19:11; fig., of garments, Re 3:18; of ripened grain, Jo 4:35.†

Abbott-Smith References

Book Refs
Ecclesiastes 9:8
Matthew 5:36 · 17:2 · 28:3
Mark 9:3 · 16:5
Luke 9:29
John 4:35 · 20:12
Acts 1:10
Revelation 1:14 · 2:17 · 3:4 · 3:5 · 3:18 · 4:4 · 6:2 · 6:11 · 7:9 · 7:13 · 14:14 · 19:11 · 19:14 · 20:11

Liddell-Scott-Jones

λευκός, ή, όν,

light, bright, clear (opposed to μέλας in all senses), αἴγλη [Refs 8th c.BC+]; λευκὸν (variant{λαμπρόν}).. ἠέλιος ὥς [Refs 8th c.BC+]; of metallic surfaces, λέβης [Refs 8th c.BC+]; λ. γαλήνη a glassy calm, [Refs 8th c.BC+]; of water, clear, limpid, [Refs 8th c.BC+]

__2 metaphorically, clear, distinct, of the voice, [Refs 4th c.BC+]: in literary sense, clear, λ. στίχος [Refs 1st c.AD+], when a rogue was detected, [Refs] adverb -κῶς, πάντα φαίνειν, of Hermes, [Refs 1st c.AD+]: comparative -ότερον, διαλεχθῆναι [Refs 3rd c.AD+]
__II of colour, white, frequently in [Refs 8th c.BC+], varying from the pure white of snow ([ἵπποι] -ότεροι χιόνος [Refs 8th c.BC+] to the grey of dust (λευκοὶ ἐγένοντο κονισάλῳ [Refs]; λ. ἅρμα, ={λεύκιππον}, [Refs 5th c.BC+]; of the white horses used by tyrants, λ. ζεῦγος [Refs 4th c.BC+], compare λεύκιππο; λ. λίθος marble, [Refs 3rd c.BC+], etc., compare λευκόλιθο; λευκῷ[ν]λίθῳ λ. στάθμη a white line on a white stone, proverbial of explanations which do not explain, [Refs 5th c.BC+]; ἡ λ. ῥίζα white root (= ἡ τοῦ δρακοντίου, accusative to [Refs 5th c.BC+]; frequently of white or grey hair, λ. κάρη [Refs 7th c.BC+]
__II.b of the human skin, white, fair, sometimes as a sign of youth and beauty, χρώς, πήχεε, [Refs 8th c.BC+]; λ. παρειά, παρηΐς, [Refs 5th c.BC+]; frequently with the notion of bare, κῶλον, πούς, [Refs]; compare λευκόπους.
__II.c of persons, white-skinned, [Refs 5th c.BC+]: hence, weakly, womanish, [Refs 5th c.BC+]; compare λευκόπρωκτος, λευκόχρως.
__II.d λευκαὶ φρένες in [Refs 5th c.BC+], frantic, passionate (compare λευκῶν πραπίδων· κακῶν φρενῶν, [Refs]
__II.2 λ. χρυσός, pale gold, i.e. gold alloyed with silver (probably the same as ἤλεκτρον), opposed to ἄπεφθος χρυσός, [Refs 5th c.BC+]
__II.3 metaphorically, bright, fortunate, happy, λευκὸν ἦμαρ νυκτὸς ἐκ μελαγχίμου [Refs 4th c.BC+]; a joyful day or holiday, [Refs 3rd c.BC+]; λ. ἡμέρα a happy day, [Refs 5th c.BC+]; ἡ λ. ψῆφος the vote of acquittal, [Refs 2nd c.AD+]
__III λεύκη, ἡ, leuko/n, τό, as substantive, (see entry). (Cogn. with Latin lux, etc.)