Quick Definition
ψεύδομαι v. I lie
Strong's Definition
middle voice of an apparently primary verb; to utter an untruth or attempt to deceive by falsehood
KJV Usage: falsely, lie
UBS Dictionary of the Greek New Testament
verb | ἀψευδής · ψευδάδελφος · ψευδαπόστολος · ψευδής · ψευδοδιδάσκαλος · ψευδολόγος · ψευδομαρτυρέω · ψευδομαρτυρία · ψευδόμαρτυς · ψευδοπροφήτης · ψεῦδος · ψευδόχριστος · ψευδώνυμος · ψεῦσμα · ψεύστης
33.253 · Communication · Speak Truth, Speak Falsehood
to lie, to tell falsehoods to communicate what is false, with the evident purpose of misleading The Greek term ψεύδομαι and the English equivalent ‘to lie’ involve more than simply telling what is not true, for this could occur without an intent to deceive or mislead. ψεύδομαι, therefore, involves not only the communication of a falsehood but also the intent to deceive.
MAT 5:11 · ACT 5:3 · ACT 5:4 · ROM 9:1 · 2CO 11:31 · GAL 1:20 · COL 3:9 · 1TI 2:7 · HEB 6:18 · JAS 3:14 · 1JN 1:6 · REV 3:9
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ψεύδομαι ; 1 aor. ἐψευσάμην ; (depon. mid. of ψεύδω [allied w. ψιθυρίζω ete. (Vanitek p. 1195)] ‘ to deceive’, ‘cheat’: hence prop. to show one’s self deceitful, to play false); fr. Hom. down; to lie, to speak deliberate falsehoods: Heb. vi. 18; 1 Jn.i.6; Rev. iii. 9; οὐ ψεύδομαι, Ro. ix. 1; 2Co. xi. 31; Gal.i.20; 1 Tim.ii.7; τινά, to deceive one by a lie, to lie to, (Eur., Arstph., Xen., Plut., | al.): Actsv. 3; like verbs of saying, with a dat. of the pers. (ef. W. § 31,5; B. §133,1; Green p. 100 sq.), Acts vy. 4 (Ps. xvii. (xviii.) 45; Ixxvii. (Ixxviii.) 36; Ixxxviii. (Ixxxix.) 36; Josh. xxiv. 27; [Jer. v. 12], etc.) ; ets τινα, Col. iii. 9; κατά τινος, against one, Mt. v. 11 [LGom Tr mrg. br. Wevd. ; al. connect καθ᾽ ὑμῶν with εἴπωσι and make ψευδ. a simple adjunct of mode (A. V. falsely) ]; κατὰ τῆς ἀληθείας, Jas. iii. 14 [here Tdf. makes Weds. absol.; cf. W. 470 (438) n.8]. (Sept. for wma and 313.)
Mounce Concise Greek Dictionary
ψεύδομαι pseudomai 12x
lie, Mt. 5:11; Acts 5:4; Rom. 9:1; 2 Cor. 11:31
Abbott-Smith Greek Lexicon
ψεύδω to deceive by lies; more freq. in the depon. mid, form ψεύδομαι (so always in NT),
[in LXX chiefly for כּחשׁ pi. ;]
absol., to lie: He 6:18, I Jo 1:6, Re 3:9; οὐ ψεύδομαι, Ro 9:1, II Co 11:31, Ga 1:20, I Ti 2:7 c. dat. pers. (Ps 17 (18):45, Je 5:12, al.), Ac 5:4; seq. εἰς, Col 3:9; κατά, Ja 3:14 (Hort, in l.).
Like act., c. acc., to deceive by lies (Æsch., al.): Ac 5:3.†
Moulton & Milligan — Vocabulary of the Greek NT
ψεύδομαι, ‘speak falsely,”’ ‘deceive by lies”: P Par 478 (c. 5.6. 152-1) (as read by Wilcken UZ i. p. 332) ὅτι ψεύδηι πάντα καὶ οἱ παρὰ σὲ θεοὶ ὁμοίως, ‘for you lie in all things and your gods likewise,” P Lond 807: 5 (a.p. 84) (= III. p- 206) ἐκί εἸῖνος piv [τ]ότε ἐψεύσατο, vuvel δὲ ὑμεῖς τὴν ἀλήθειαν γράψαται (/. γράψατε), P Oxy II. 237}. 33. νι 2 (A.D. 186), and OG/ZS 669°8 (i/a.D.) ἐὰν δέ τις ἐλεγχθῆι ψευσάμενος, and the late P Oxy XVI. 1868% (vi/vii A.D.) οἴδαμεν καὶ πεπίσμεθα τὴν σὴν γνησίαν λαμπρότητα [μὴ] ψευδομένην, μάλιστα καὶ ὅταν ὀμώσῃς (/. ὀμόσῃς), ‘we know and are persuaded that your true illustriousness does not speak falsely, especially when you have sworn” (Edd.). The verb is common in such phrases as P Oxy X. 126632 (A.D. 98) ὀμνύω Αὐτοκράτορα Καίσαρα Népovoy . . . μὴ ἐψεῦσθαι, 75. 1264°° (A.D. 272) ὀμνύω τὸν ἔθιμον Ῥωμαίοις ὅρκον μὴ ἐψεῦσθαι, “IT swear the oath customary with Romans that I have not made a false statement”’ (Edd.).
Liddell-Scott-Jones — Greek-English Lexicon
ψεύδομαι (pseudomai) — to lie. ψεύδομαι, see at {ψεύδω} [Refs 5th c.BC+]