Answer: idiosyncrasy

AnswerCrossword Clue
IDIOSYNCRASYKojak's love of lollipops or Reagan's love of jellybeans, e.g.
idiosyncrasya peculiarity of constitution or temperament
idiosyncrasya peculiarity of constitution or temperament an individualizing characteristic or quality
idiosyncrasycentricity
idiosyncrasydividual hypersensitiveness (as to a drug or food)