Abbott-Smith Manual Greek Lexicon
ἱλαστήριος (G2435)
2 † ἱλαστήριος , -α, -ον ( ἱλάσκομαι ), [in LXX: IV Mac 17:22 ; neut., Ex 25:16 ( 17 ) ff. 31:7 35:12 38:5 ( 37:6 ) ff., Le 16:2 , 13 ff. Nu 7:89 ( כַּפֹּרֶת ), Ez 43:14 , 17 , 20 ( עֲזָרָה ) Am 9:1 (on the original here, v. Deiss., BS , 127)*;] propitiatory ( μνῆμα , FlJ, Ant. , xvi, 7, 1; θάνατος , II Mac, l.c.): of Christ, Ro 3:25 ; as subst., το ἱ. (sc. ἐπίθεμα , Ex 25:16 , 17 , where the word first occurs in LXX and where ἱ. ἐ. = כַּפֹּרֶת (q.v. in BDB, s.v.), elsewhere rendered simply τὸ ἱ ; cf. Deiss., 124 ff.; Westc., He. , in l.), He 9:5 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain