Dictionary.com
definitions
  • synonyms

an-1

See more synonyms for an- on Thesaurus.com
  1. a prefix occurring before stems beginning with a vowel or h in loanwords from Greek, where it means “not,” “without,” “lacking” (anarchy; anecdote); used in the formation of compound words: anelectric.
Show More
Also before a consonant, a-.

Origin of an-1

< Greek. See a-6, in-3, un-1

an-2

  1. variant of ad- before n: announce.
Show More

an-3

  1. variant of ana- before a vowel: anion.
Show More
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for an-

an-

before a consonant a-

prefix
  1. not; withoutanaphrodisiac
Show More

Word Origin

from Greek
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 an-

1

privative prefix, from Greek an-, "not, without," related to ne- and cognate with Sanskrit an-, Latin in-, Gothic and Old English un- (see un- (1)).

Show More

2

form of Latin ad- before -n- (see ad-).

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

an- in Medicine

an-

pref.
  1. Variant ofa-