Exculpate :: Exculpate (v. t.) To clear from alleged fault or guilt; to prove to be guiltless; to relieve of blame; to acquit.
Exculpation :: Exculpation (n.) The act of exculpating from alleged fault or crime; that which exculpates; excuse.
Exculpatory :: Exculpatory () Clearing, or tending to clear, from alleged fault or guilt; excusing..