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v. a·toned, a·ton·ing, a·tones
1. To make amends, as for a sin or fault: These crimes must be atoned for.
2. Archaic To agree.
1. To expiate.
2. Archaic To conciliate; appease: "So heaven, atoned, shall dying Greece restore" (Alexander Pope).
3. Obsolete To reconcile or harmonize.
[Middle English atonen, to be reconciled, from at one, in agreement : at, at; see at + one, one; see one.]
a·ton′a·ble, a·tone′a·ble adj.