Lexical Definition

‎βλασφημία‎ blasphēmía (blas-fay-me'-ah) blasphemy G:N-F
from ‎βλάσφημος‎

blasphemy, evil speaking, railing.

Usage: 5 forms in 20 verses
Form Translated As     In Verse(s)
βλασφημιών of your blasphemies LXX.Ezek.35.12
βλασφημίασ blasphemies Luke.5.21Rev.13.5Rev.13.6
blasphemy Mark.14.64John.10.33Jude.1.9
of blasphemy Rev.13.1Rev.17.3
βλασφημίαν blasphemy LXX.Dan.3.29Matt.26.65
slander Col.3.8Rev.2.9
βλασφημίαι blasphemies Mark.3.28
slander 1Tim.6.4
slanders Matt.15.19
βλασφημία blasphemy Matt.12.31Matt.12.31
slander Mark.7.22Eph.4.31

Abbott-Smith

βλασφημία, -ας, ἡ (< βλάσφημος), [in LXX: Ez 35:12 (נֶאָצָה), Da TH 3:29 (96) (שׁלה), To 1:18, I Mac 2:6, II Mac 8:4 10:35 15:24 * ;]
(a) railing slander: Mt 12:31 15:19, Mk 3:28 7:22, Eph 4:31, Col 3:8, I Ti 6:4, Ju 9, Re 2:9;
(b) spec., impious speech against God, blasphemy: Mt 26:65, Mk 14:64, Lk 5:21, Jo 10:33, Re 13:5; ὄνομα βλασφημίας, Re 13:1 17:3; c. gen. obj. Mt 12:31; πρὸς τ. θεόν, Re 13:6 (Cremer, 570; DB, i, 305; DCG ii, 423).†

Abbott-Smith References

Book Refs
Ezekiel 35:12
Daniel 3:29
Matthew 12:31 · 15:19 · 26:65
Mark 3:28 · 7:22 · 14:64
Luke 5:21
John 10:33
Ephesians 4:31
Colossians 3:8
1 Timothy 6:4
Jude 1:9
Revelation 2:9 · 13:1 · 13:5 · 13:6 · 17:3

Liddell-Scott-Jones

βλασφημία-ία, ,

word of evil omen, profane speech, [Refs 4th c.BC+]; βλασφημίαίαν ἐφθέγξατο, at a sacrifice, [βλασφημίαοῖ β. πᾶσαν 5th-6th c.BC: Plato Philosophus “Leges” 800c; πᾶσαν β. ἱερῶν καταχέουσι [prev. work]d. ">Refs 5th c.BC+]

__2 defamation, slander, [NT+4th c.BC+]; ὅλας ἁμάξας βλασφημίαιῶν whole cart-loads of abuse, [Refs 2nd c.AD+]
__3 irreverent speech against God, blasphemy, εἰς τὸ θεῖον β. [LXX+4th c.BC+]against.., [NT]

LSJ Scripture Refs: Eph.4.31LXX.Ezek.35.12Matt.12.31Rev.13.6