society > morality > virtue > righteousness or rectitude > reform, amendment, or correction > reform [verb (reflexive)] (3)
transitive (reflexive). To reform oneself; to mend one's ways. Now somewhat rare.
transitive (reflexive). To reform oneself. Obsolete.
transitive. To improve (a person's conduct or character). Also reflexive: to improve one's own conduct, character, etc. Also in extended use.