Lexical Definition

‎ψεύστης‎ pseústēs (psyoos-tace') liar G:N-M
from ‎ψεύδομαι‎

liar.

Usage: 4 forms in 12 verses
Form Translated As     In Verse(s)
ψεῦσται liars Titus.1.12
ψεύστησ a liar LXX.Ps.116.11John.8.44John.8.55Rom.3.41John.2.41John.4.20
liar LXX.Prov.19.221John.2.22
ψεύστην a liar 1John.1.101John.5.10
ψεύσταισ for liars 1Tim.1.10

Abbott-Smith

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 .†

Abbott-Smith References

Book Refs
Psalms 116:11
Proverbs 19:22
John 8:44 · 8:55
Romans 3:4
1 Timothy 1:10
Titus 1:12
1 John 1:10 · 2:4 · 2:22 · 4:20 · 5:10

Liddell-Scott-Jones

ψεύστης-της, ου, ,

(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+]; ψεύστηςτης δ᾽ οτος ἔπεστι λίθος, of a cenotaph, [Refs 1st c.AD+]; τὸν ψεύστηςταν 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+]

LSJ Scripture Refs: Titus.1.12