H3722 — kaphar
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
kaphar — pronounced kaw-far
a primitive root; to cover (specifically with bitumen); figuratively, to expiate or condone, to placate or cancel:-- appease, make (an atonement, cleanse, disannul, forgive, be merciful, pacify, pardon, purge (away), put off, (make) reconcile(-liation).
102 occurrences in the KJV.
Ezekiel 45:20
And so thou shalt do the seventh day of the month for every one that erreth, and for him that is simple: so shall ye reconcile the house.
Daniel 9:24
Seventy weeks are determined upon thy people and upon thy holy city, to finish the transgression, and to make an end of sins, and to make reconciliation for iniquity, and to bring in everlasting righteousness, and to seal up the vision and prophecy, and to anoint the most Holy.