Strongs: G2435
G2435 @ ἱλαστήριον hilastērion hil-as-tay'-ree-on Neuter of a derivative of G2433 an expiatory (place or thing) that is (concretely) an atoning victim or (specifically) the lid of the Ark (in the Temple): - mercyseat propitiation.
Romans:3:25
Hebrews:9:5