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Synonyms

potentate

American  
[poht-n-teyt] / ˈpoʊt nˌteɪt /

noun

  1. a person who possesses great power, as a sovereign, monarch, or ruler.


potentate British  
/ ˈpəʊtənˌteɪt /

noun

  1. a person who possesses great power or authority, esp a ruler or monarch

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of potentate

1350–1400; Middle English < Late Latin potentātus potentate, Latin: power, dominion. See potent 1, -ate 3