peacemaker
nounmasculineformal/pɐsifikaˈdoɾ/low
pa·ci·fi·ca·dor
Definition
One who pacifies, who re-establishes or promotes peace; a mediator of conflicts.
The diplomat was sent as a peacemaker to the war-torn region.
His peacemaking attitude calmed tempers at the meeting.
Etymology
Do latim 'pacificator, pacificatoris', de 'pacificare' (pacificar).