See more synonyms for brotherly on
  1. as a brother; fraternally.

Origin of brotherly

before 1000; Middle English; Old English brōthorlīc. See brother, -ly
Related formsbroth·er·li·ness, nounpseu·do·broth·er·ly, adverbqua·si-broth·er·ly, adjectiveun·broth·er·li·ness, nounun·broth·er·ly, adjective, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for brotherly


  1. of, resembling, or suitable to a brother, esp in showing loyalty and affection; fraternal
  1. in a brotherly way; fraternally
Derived Formsbrotherliness, 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

Word Origin and History for brotherly

Old English broðorlic; see brother + -ly (1).

Online Etymology Dictionary, © 2010 Douglas Harper