Webster's English Dictionary

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idiosyncrasy

Cross references:
  1. eccentricity          
 
id.io.syn.cra.sy \.id-e--*-'sin-kr*-se-\ \id-e--o--(.)sin-'krat-ik\ 
   \-'krat-i-k(*-)le-\ n [Gk idiosynkrasia, fr. idio- + synkerannynai to 
   blend, fr. Xsyn- + kerannynai to mingle, mix - more at CRATER 1: 
   characteristic peculiarity of habit or structure  2a: a peculiarity of 
   constitution or temperament  2b: individual hypersensitiveness (as to a 
   drug or to food)  - id.io.syn.crat.ic aj