Definition of gray eminence
: a person who exercises power behind the scenes
Origin of gray eminence
translation of French Éminence grise, nickname of Père Joseph (François Joseph du Tremblay) †1638 French monk and diplomat who was confidant of Cardinal Richelieu, styled Éminence rouge (red eminence); from the colors of their respective habits
First Known Use: 1941
Seen and Heard
What made you want to look up gray eminence? Please tell us where you read or heard it (including the quote, if possible).