quadri-


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quadri-

(word root) four
Examples of words with the root quadri-: quadriplegic
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree

quadri-

or quadr- or quadra- or quadru-
pref.
1. Four: quadrilateral.
2. Square: quadrate.

[Middle English, from Latin; see kwetwer- in Indo-European 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.

quadri-

or before a vowel

quadr-

combining form
four: quadrilateral; quadrilingual; quadrisyllabic.
[from Latin; compare quattuor four]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

quadri-

a combining form meaning “four”: quadrilateral.
Also, quadru- ;esp. before a vowel, quadr-.
[< Latin; akin to quattuor four]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.