expiation
The city began to build the expiatory church in the 19th century.
The festival first began as an expiatory rite.
The king believed in the expiatory power of prayer.
He was ordered to perform a number of expiatory acts before being pardoned for his crime.
The monks went on an expiatory pilgrimage every year.

SMART Vocabulary: related words and phrases

Making & accepting apologies
amends
apologetically
apologize
atone for something
atonement
beg
bury
bygone
conciliatory
crawl
crawl back (to someone)idiom
forge ahead
forgive
penance
resolve your differences
shred
sink your differencesidiom
solatium
sorry to bother you
soz