G5583
ψεύστης
liar
ψεύστης, -ου, ὁ (ψεύδω), [in LXX: Psa.116:11 (כָּזַב), Pro.19:22 A N2 (כָּזָב), Sir.15:8 25:2 * ;] a liar: Jhn.8:44, 55, Rom.3:4, 1Ti.1:10, Tit.1:12, 1Jn.1:10 Jn 2:4 Jn 2:22 Jn 4:20 Jn 5:10 .† (AS)
The KJV translates G5583 in the following manner:
liar (16x), liars (4x)
Full Thayer's lexicon entry
ψεύστης — pseústēs
ψεύστης, ψευστου, ὁ (ψεύδω), from Homer down, a liar: Joh 8:44; Joh 8:55; 1Jn 1:10; 1Jn 2:4; 1Jn 2:22; 1Jn 4:20; 1Jn 5:10; 1Ti 1:10; Tit 1:12; (Rev 21:8 Lachmann (others ψευδής, which see)); one who breaks faith, a false or faithless man (see ψεῦσμα), Rom 3:4 cf. Pro 19:22.
10 occurrences
John (2), Romans (1), I Timothy (1), Titus (1), I John (5)