quadru-

Origin of quadru-

< Latin: variant of quadri- before labial consonants, as in quadrupēs quadruped, quadruplex quadruplex
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for quadru-

word-forming element meaning "four, having four, consisting of four," variant of quadri-, especially before -p-, from an older form of the element, which perhaps was influenced later by tri-.

Online Etymology Dictionary, © 2010 Douglas Harper