Lexical Definition

‎ψευδομαρτυρέω‎ pseudomartyréō (psyoo-dom-ar-too-reh'-o) to perjure G:V
from ‎ψευδομάρτυρ‎

be a false witness.

Usage: 3 forms in 8 verses
Form Translated As     In Verse(s)
ἐψευδομαρτύρουν were bearing false testimony Mark.14.56Mark.14.57
ψευδομαρτυρήσῃσ shall you bear false witness Mark.10.19Luke.18.20
ψευδομαρτυρήσεισ will you bear false witness Matt.19.18Rom.13.9
witness falsely LXX.Exod.20.16LXX.Deut.5.20

Abbott-Smith

ψευδο-μαρτυρέω, -ῶ [in LXX: Ex 20:16, De 5:20 (17) (ענה), Da TH Su61 AB2R (v. ψευδομάρτυς) * ;]
to bear false witness: Mt 19:18, Mk 10:19, Lk 18:20 (LXX); seq. κατά, c. gen. pers., Mk 14:56, 57 (Xen., Plat., al.).†

Abbott-Smith References

Book Refs
Exodus 20:16
Deuteronomy 5:20
Matthew 19:18
Mark 10:19 · 14:56 · 14:57
Luke 18:20

Liddell-Scott-Jones

ψευδομαρτυρέω-έω,

to be a false witness, bear false witness, [NT+5th c.BC+]

LSJ Scripture Refs: LXX.Exod.20.16Mark.14.56