Origin: Latin suffix -tion
Exculpation has 3 different meanings across 1 category:
a defense of some offensive behavior or some failure to keep a promise etc.
"he kept finding excuses to stay"
"every day he had a new alibi for not getting a job"
"his transparent self-justification was unacceptable"
the act of freeing from guilt or blame
The act of exculpating from alleged fault or crime.