atone 
/əˈtoʊn/ verb
atones; atoned; aton·ing /əˈtoʊn/ verb [no obj] formal : to do something good as a way to show that you are sorry about doing something bad — usually + for ▪ He says that he volunteers at the homeless shelter as a way to atone for [=make up for] the sins of his youth.
— atone·ment /əˈthoʊnmənt/ noun [noncount]
▪ atonement for his sins
/əˈthoʊnmənt/ noun [noncount] ▪ atonement for his sins
