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n. Often Offensive
A person who is not a believer in Islam.
[French, from Italian dialectal (Venetian) giaur (with gi- representing palatalized g- in Ottoman Turkish gâvur), from Ottoman Turkish gâvur, alteration of earlier gebr, from Persian gabr, infidel, Zoroastrian, from Arabic kāfir, infidel, from kafr, village, from Aramaic kaprā; see kpr in Semitic roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Islam) a derogatory term for a non-Muslim, esp a Christian, used esp by the Turks
[C16: from Turkish giaur unbeliever, from Persian gaur, variant of gäbr]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
(in Islam) a nonbeliever, esp. a Christian.
[1555–65; earlier gower, gour < Turkish gâvur < Persian gaur, variant of gabr Zoroastrian, non-Muslim]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.