G2433–ἱλάσκομαι–hilaskomai

The tax-farmer, on the other hand, keeping far away, and not lifting up even his eyes to heaven, made signs of grief and said, God, have mercy on me, a sinner.

ἱλάσθητί hilasthēti “do be merciful”

Because of this it was necessary for him to be made like his brothers in every way, so that he might be a high priest full of mercy and keeping faith in everything to do with God, making offerings for the sins of the people.

ἱλάσκεσθαι hilaskesthai “to make propitiation for”