ex ‧ on ‧ e ‧ rate /ɪɡˈzɒnəreɪt $ ɪɡˈzɑː-/ BrE AmE verb [transitive]
[ Date: 1400-1500 ; Language: Latin ; Origin: past participle of exonerare , from onus 'load' ]
to state officially that someone who has been blamed for something is not guilty
exonerate somebody from/of something
He was totally exonerated of any blame.
—exoneration /ɪɡˌzɒnəˈreɪʃ ə n $ -ˌzɑː-/ noun [uncountable]