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Origin of infighting

First recorded in 1810–20; in-1 + fighting
Related formsin·fight·er, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for infighting


  1. boxing combat at close quarters in which proper blows are inhibited and the fighters try to wear down each other's strength
  2. intense competition, as between members of the same organization, esp when kept secret from outsiders
Derived Formsinfighter, noun
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