Quick Definition
ψεύστης, ου, ὁ n.m. a liar, deceiver
Strong's Definition
from 5574; a falsifier
KJV Usage: liar
UBS Dictionary of the Greek New Testament
noun, m. | -ου | ψεύδομαι
33.255 · Communication · Speak Truth, Speak Falsehood
liar one who utters falsehoods and lies Since lying is a universal, there is usually no difficulty in obtaining a satisfactory term for ‘liar,’ though frequently the equivalent is an idiomatic expression, for example, ‘to speak too much,’ ‘to speak with two tongues,’ or ‘to speak what is not one’s thoughts.’
JHN 8:44 · JHN 8:55 · ROM 3:4 · 1TI 1:10 · TIT 1:12 · 1JN 1:10 · 1JN 2:4 · 1JN 2:22 · 1JN 4:20 · 1JN 5:10
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ψεύστης, -ov, 6, (ψεύδω), fr. Hom. down, a liar: ὅπ. viii. 44, 55; 1Jn.i.10; ii. 4, 22: iv. 20; v.10; 1 Tim. i ; Tit. 1. 12; [Rev. xxi. 8 Lehm. (al. ψευδής, 4. v-)]; one who breaks faith, a false or faithless man (see ψεῦσμα), Ro. iii. 4 ef. Prov. xix. 22.
Mounce Concise Greek Dictionary
ψεύστης pseustēs 10x
one who utters a falsehood, a liar, Jn. 8:44, 55; Rom. 3:4; 1 Tim. 1:10; Tit. 1:12; 1 Jn. 1:10; 2:4, 22; 4:20; 5:10*
Abbott-Smith Greek Lexicon
ψεύστης, -ου, ὁ
(< ψεύδω), [in LXX: Ps 115:2 ( 116:11) (כֹּזֵב), Pr 19:22 Aא2 (כָּזָב), Si 15:8 25:2 * ;]
a liar: Jo 8:44, 55, Ro 3:4, I Ti 1:10, Tit 1:12, I Jo 1:10 2:4, 22 4:20 5:10 .†
Moulton & Milligan — Vocabulary of the Greek NT
ψεύστης, “fa liar.” On the place which ψεύστης occupies in the primitive Christian lists of vices, corresponding to Jewish or pagan lists, see Deissmann LA £*, p. 315 ff.
Liddell-Scott-Jones — Greek-English Lexicon
ψεύστης (pseustēs) — liar. ψεύσ-της, ου, ὁ, (ψεύδω) liar, cheat, [LXX+8th c.BC+] with genitive _of things_, ὧν.. ψεῦσται φανούμεθα wherein we shall be found to be liars, [Refs 5th c.BC+]
2. adjective, ={ψευδής}, lying, false, ψ. λόγος [Refs 5th c.BC+]; ψεύστης δ᾽ οτος ἔπεστι λίθος, of a cenotaph, [Refs 1st c.AD+]; τὸν ψεύσταν δέ με τύμβον.. θέντο· τί θαῦμ; Κρῆτες ὅπου ψεῦσται, καὶ Διός ἐστι τάφος[Refs 6th c.BC+], which is cited by [NT+3rd c.BC+]