DictionaryRoot: krasis
Greek
krasis
mixture
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noun
idiosyncrasy
id-ee-uh-SING-kruh-see/ˌɪdiəˈsɪŋkrəsi/
An unusual trait characteristic of a particular person or thing.
Etymology
The pieces describe a person’s own mixture, originally a physical constitution. This shifted to the mixture making up someone’s personality, then to a distinctive habit or trait.