G2433–ἱλάσκομαι–hilaskomai

"But the tax-gatherer, standing far back, would not so much as lift his eyes to Heaven, but kept beating his breast and saying, "`O God, be reconciled to me, sinner that I am.'

ἱλάσθητί hilasthēti “do be merciful”

And for this purpose it was necessary that in all respects He should be made to resemble His brothers, so that He might become a compassionate and faithful High Priest in things relating to God, in order to atone for the sins of the people.

ἱλάσκεσθαι hilaskesthai “to make propitiation for”