Lexical Definition

‎ἄγνοια‎ ágnoia (ag'-noy-ah) ignorance G:N-F
from ‎ἀγνοέω‎

ignorance.

Usage: 6 forms in 15 verses
Form Translated As     In Verse(s)
ἄγνοιαν ignorance Acts.3.17Eph.4.18
ἀγνοίᾳ ignorance 1Pet.1.14
ἀγνοίασ of ignorance Acts.17.30
αγνοίασ an ignorance LXX.Ezek.40.39LXX.Ezek.42.13LXX.Ezek.44.29LXX.Ezek.46.20
his ignorance LXX.Lev.5.18
my ignorance LXX.Ps.25.7
άγνοιαν ignorance LXX.Gen.26.10LXX.Lev.22.14LXX.1Sam.14.24
our ignorance LXX.2Chr.28.13
άγνοια It is in ignorance LXX.Eccl.5.6

Abbott-Smith

ἄγνοια, -ας, ἡ (< ἀγνοέω), [in LXX chiefly for אָשָׁם, שְׁגָגָה;]
ignorance : Ac 3:17 17:30, Eph 4:18 (with sense of wilful blindness; cf. MM, VGT, s.v.), I Pe 1:14.†

Abbott-Smith References

Book Refs
Acts 3:17 · 17:30
Ephesians 4:18
1 Peter 1:14

Liddell-Scott-Jones

ἄγνοια, ,

(see. γιγνώσκω) want of perception, ignorance, ἀγνοίᾳ[Refs 4th c.BC+]; ἣν ὑπ᾽ ἀγνοίας ὁρᾷς whom seeing you pretend not to know, [Refs 5th c.BC+]; opposed to ἐπιστήμη, [Refs 5th c.BC+]; δι᾽ ἄγνοιαν πράττειν, opposed to ἀγνοῶν, [Refs 4th c.BC+] ignoratio elenchi, ignorance of the conditions of a valid proof, [Refs 4th c.BC+]

__II mistaken conduct, a mistake, [Refs 5th c.BC+]; old Attic dialect, accusative to [Refs 2nd c.AD+]; Ionic dialect ἀγνοίη[Refs 9th c.AD+]