Self-abasement

n.	1.	Degradation of one's self by one's own act.
	2.	Humiliation or abasement proceeding from consciousness of inferiority, guilt, or shame.

Noun

1.

self-abasement - voluntary self-punishment in order to atone for some wrongdoing Synonyms: self-mortification, penance

penalisation, penalization, penalty, penance, punishment, self-mortification