con ‧ done /kənˈdəʊn $ -ˈdoʊn/ BrE AmE verb [transitive]
[ Date: 1800-1900 ; Language: Latin ; Origin: condonare 'to forgive' , from com- ( ⇨ COM- ) + donare ( , ↑ donation ) ]
to accept or forgive behaviour that most people think is morally wrong:
I cannot condone the use of violence under any circumstances.