concionate
/ˌkɑn.sɪˈleɪt/; /ˌkɑn.sɪˈleɪtɪt/Definitions
1. verb
to make (two or more people) agree or stop fighting, or to make (two or more groups) work together more easily
“The mediator worked hard to conciliate the warring factions.”
2. noun
a person or thing that helps to make two or more people or groups work together more easily
“The government appointed a conciliator to resolve the labor dispute.”