ἱλαστήριον

ἀλλ᾽ ἀμφὶ τοῖς σφαλεῖσι μὴ 'ξ ἑκουσίας ὀργὴ πέπειρα → to those who err in judgment, not in will, anger is gentle | men's wrath is softened toward those who have erred unwittingly

English (Strong)

neuter of a derivative of ἱλάσκομαι; an expiatory (place or thing), i.e. (concretely) an atoning victim, or (specially) the lid of the Ark (in the Temple): mercyseat, propitiation.

ἱλαστήριον: τό
1) умилостивительная жертва NT;
2) очистилище, золотая крышка или навес над Ковчегом Завета NT.