Origin of cf.
From the Latin word confer
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Word Origin and History for cf.
abbreviation of Latin confer "compare" (see confer).
Online Etymology Dictionary, © 2010 Douglas Harper
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.