Strong's G2433 — ἱλάσκομαι (verb)
hilaskomai (hil-as'-kom-ai) v.
1. to conciliate
2. (transitively) to atone for (sin)
3. (intransitively) be propitious
[middle voice from perhaps the alternate form of G138]
KJV: be merciful, make reconciliation for 
Root(s): G138 
See also: G2436 
Hebrew root: αἱρέομαι
Occurrences: 2