atonement
noun
[ əˈtəʊnm(ə)nt ]
• the action of making amends for a wrong or injury.
• "he submitted his resignation as an act of atonement"
Origin:
early 16th century (denoting unity or reconciliation, especially between God and man): from at one + -ment, influenced by medieval Latin adunamentum ‘unity’, and earlier onement from an obsolete verb one ‘to unite’.