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hiero-

  1. a combining form meaning “sacred,” “priestly,” used in the formation of compound words: hierocracy.
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Also especially before a vowel, hier-.

Origin of hiero-

< Greek hieró(s) holy, sacred
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for hiero-

hiero-

before a vowel hier-

combining form
  1. holy or divinehierocracy; hierarchy
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Word Origin for hiero-

from Greek, from hieros
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