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ante-

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  1. a prefix meaning “before,” used in the formation of compound words: anteroom; antebellum; antedate.

Origin of ante-

< Latin, prefixal form of preposition and adv. ante (see ancient1); akin to Greek antí, Old English and- against, toward, opposite. See answer, and, anti-
Can be confusedante ante- anti- auntie
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for ante-

ante-

prefix
  1. before in time or position; previous to; in front ofantedate; antechamber

Word Origin

from Latin
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

Word Origin and History for ante-

word-forming element meaning "before, in front of; previous, existing beforehand; introductory to," from Latin ante (prep. and adv.) "before, in front of, opposite," used in combinations, from PIE *anti "facing opposite, near, in front of, before" (see ante).

Online Etymology Dictionary, © 2010 Douglas Harper

ante- in Medicine

ante-

pref.
  1. Prior to; earlier:antenatal.
  2. In front of; before:antebrachium.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.