Quick Definition
ψεῦδος, ους, τό n.n. a lie
Strong's Definition
from 5574; a falsehood
KJV Usage: lie, lying
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
Ψεῦδος, -ους, τό, fr. Hom. down, Sept. for TY, 313, wm, a lie; conscious and intentional falsehood : univ. Rev. xiv. 5 (where Ree. δόλος) ; opp. to ἡ ἀλήθεια, Jn. vili. 44; Eph. iv. 25; οὐκ ἔστι ψεῦδος, opp. to ἀληθές ἐστιν, is no lie, 1 Jn. ii. 27; τέρατα ψεύδους, [A. V. lying wonders] exhibited for the treacherous purpose of deceiving men, 2 Th. ii. 9; in a broad sense, whatever is not what it professes to be: so of perverse, impious, deceitful precepts, 2 Th. ii. 11; 1 Jn. ii. 21; of idolatry, Ro. 1. 25; ποιεῖν ψεῦδος, to act in accordance with the precepts and principles of idolatry, Rev. xxi. 27; xxii. 15, [ef. xxi. 8, and p. 526 mid.].
Mounce Concise Greek Dictionary
ψεῦδος pseudos 10x
falsehood, Jn. 8:44; Eph. 4:25; 2 Thess. 2:9, 11; 1 Jn. 2:21, 27; in NT religious falsehood, perversion of religious truth, false religion, Rom. 1:25; the practices of false religion, Rev. 14:15; 21:27; 22:15*
Abbott-Smith Greek Lexicon
ψεῦδος, -εος (-ους), τό
[in LXX chiefly for שֶׁקֶר, also for כַּחַשׁ, כָּזָב ;]
a falsehood, untruth, lie: Re 14:15; opp. to ἡ ἀλήθεια, Jo 8:44, Ro 1:25, Eph 4:25, II Th 2:11, I Jo 2:21; to τὸ ἀληθές, ib. 27; ποιεῖν ψ., Re 21:27 22:15; ἐν πάσῃ δυνάμει κ. σημείοις κ. τέρασιν ψεύδους (gen. qual., v. M, Th., 104; and on the meaning and construction, v. also ICC, in l.), II Th 2:9.†
Moulton & Milligan — Vocabulary of the Greek NT
ψεῦδος, “*falsehood,” ‘‘untruth’’: cf. Chrest. I. 110 18 (B.c, 110) οὐθὲν ψεῦδος ἐν τῷ ὅρκῳ ἐστίν, and the Delphic precept ον δ 1268%-27 ψεῦδος αἰσχύνοίυ. In 2 Thess 211} τῷ Ψεύδει is contrasted with τῆς ἀληθείας (ver. 10). Note that ‘“‘among the Persians ‘the Lie’ (Drazga, akin to the Avestan demon Drzj) is a comprehensive term for all evil ” (Moulton £2xf 7 xviii. p. 537).
Liddell-Scott-Jones — Greek-English Lexicon
ψεῦδος (pseudos) — lie. ψεῦδος, εος, τό, Epic dialect dative plural ψεύδεσσι, see at {ψευδής} I.2: (ψεύδω):— falsehood, lie, ψεύδεα.. ἐτύμοισιν ὁμοῖα [Refs 8th c.BC+]; εἴ τε ψεῦδος ὑπόσχεσις εἴ τε καὶ οὐκί whether the promise be a lie or no, [Refs 8th c.BC+]; ψ. ποικίλα, αἰόλον ψ., [Refs]; ψ. γλυκύ a sweet deceit, [Refs 5th c.BC+]
2. in Logic, false conclusion, fallacy, συλλογισμὸς τοῦ ψεύδους [Refs 4th c.BC+]; συμβαίνει ψ.[Refs] —in “NT” of what is opposed to religious truth, false doctrine, [NT]; ποιῶν βδέλυγμα καὶ ψ., i.e. doing what is repugnant to the true faith, [NT]; of false anatomical doctrine, τὸ οἴεσθαι.. ψ. ἐστι [Refs 2nd c.AD+]
II. in [Refs 3rd c.BC+] are spots, pimples on the nose; supposed to be characteristic of liars, cf. Scholia (at [prev. work]); compare ψυδράκιον.
II.2. white spots on the fingernails, [Refs 3rd c.AD+]
III. In [Refs 5th c.BC+]; so almost like an adjective (compare ψευδής [near the start]), ὄνομα ψεῦδος καὶ ἀληθὲς λέγειν [Refs 5th c.BC+]