a person who wields unofficial power, especially through another person and often surreptitiously or privately.
Grey vs. GrayGrey and gray are both accepted in the English language. They refer to a color of a neutral tone between black and white, and can also be used metaphorically to convey gloom and dullness. However, gray is the more popular spelling in the US, while grey reigns supreme in the UK. For centuries, the one letter difference between gray and grey has left people wondering …
Also éminence grise.
Origin of gray eminence
1940–45; translation of French éminence grise
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019