Lexical Definition

‎ἀγνόημα‎ agnóēma (ag-no'-ay-mah) error ^G:N-N
from ‎ἀγνοέω‎

error.

• a thing ignored, i.e. shortcoming

Abbott-Smith

† ἀγνόημα, -τός, τό (< ἀγνοέω), [in LXX: Ge 43:12 (מִשְׁגֶּה), To 3:3, Jth 5:20, Si 23:2 51:19, I Mac 13:39*;]
a sin of ignorance (so in π.; v. MM, VGT, s.v.): He 9:7.†

Abbott-Smith References

Liddell-Scott-Jones

ἀγνόημα-ημα, τό,

fault of ignorance, oversight, ψυχῆς[NT+5th c.BC+]; in plural, opposed to ἁμαρτήματα, [Refs 2nd c.BC+]

__II ignorance, περί τινος[Refs 1st c.BC+]
__III object of ἄγνοια, [Refs 5th c.AD+]

_{LSJ Scripture Refs: Heb.9.7}